Math Question

3/4 of a number is 72.what is 1/3 of the number?

$\begin{array}{rcll} x \cdot \dfrac34 &=& 72 \qquad & | \qquad \cdot \frac43 \\ x &=& 72 \cdot \frac43 \\ x &=& 96 \\ x &=& 96 \qquad & | \qquad \cdot \frac13 \\ x\cdot \frac13 &=& 96 \cdot \frac13 \\ \mathbf{ x\cdot \frac13 } &\mathbf{=}& \mathbf{ 32 }\\ \end{array}$

1/3 of the number is 32

x*3/4=72*1/3 

x*3/4=72/3

x=72*4/3*3

x=288/9

x=32