Question

Determine the following are in proportion:

$9,27,24,72$

Answer 1

Checking whether the numbers are in proportion or not

Four numbers $a,b,c,d$ are said to be in proportion if $a:b$ and $c:d$ are equivalent ratios.

Now, converting the numbers into ratios

$9:27$ and $24:72$

$\frac{9}{27}$ and $\frac{24}{72}$

Reducing it to the lowest form:

$\frac{1}{3}$ and $\frac{1}{3}$.

Since, both the ratios are equivalent ratios.

Hence, $9,27,24,72$ are in proportion.