Question

Check the following number is in proportion or not? $35,40,56$ and $64$

Answer 1

Check the numbers are in proportion or not:

Let, $35,40,56$ and $64$ are in proportion.

So, $35:40::56:64$

$\Rightarrow \frac{35}{40}=\frac{56}{64}$

$\Rightarrow \frac{35÷5}{40÷5}=\frac{56÷8}{64÷8}$

$\Rightarrow \frac{7}{8}=\frac{7}{8}$

Hence,$35,40,56$ and $64$ are in proportion.