The Springboks led 17-14 at half-time before taking control after the break, with Malcolm Marx and Pieter-Steph du Toit crossing in quick succession.
South Africa have wrapped up a 3-1 series victory over New Zealand after beating the All-Blacks 43-28 in Baltimore.
The Springboks led 17-14 at half-time before taking control after the break, with Malcolm Marx and Pieter-Steph du Toit crossing in quick succession.
Further tries from Kurt-Lee Arendse and Cameron Hanekom helped South Africa pull clear, despite second-half scores from Ethan Blackadder and Beauden Barret for New Zealand.
The result completes an impressive series for the world champions, who won three of the four meetings between the sides.

Arsenal's Perfect Record Stays With Win At Sunderland
Rybakina Beats Sabalenka To Claim First US Open Tennis Crown
Lowry Takes Four-Shot Lead Into Irish Open Final Round At Doonbeg
Maguire Set For Solheim Cup Singles Showdown As Europe And US Locked Level
Sunday Morning Sports Update
St Pat's Beat Shamrock Rovers As Title Race Tightens
Shelton Sets Up US Open Final Showdown With Zverev
Saturday Morning Sports News