The given series is:

The pattern observed is that each number in the first row is multiplied by \( \frac{2}{3} \) to get the corresponding number in the second row:

• \( 96 \times \frac{2}{3} = 64 \)
• \( 48 \times \frac{2}{3} = 32 \)
• \( 24 \times \frac{2}{3} = 16 \)

Thus, the missing number is 16.