Finding the Fourth Proportional to 99,728.74, 149,572.99 and 36,527.28
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Solution
The fourth proportional to 99,728.74, 149,572.99 and 36,527.28 is: 54,783.55
Step by Step Solution
- Step 1: Write the proportion equation
99,728.74 : 149,572.99 = 36,527.28 : x - Step 2: Convert to fraction form
99,728.74/149,572.99 = 36,527.28/x - Step 3: Cross multiply
99,728.74x = 149,572.99 × 36,527.28 - Step 4: Simplify right side
99,728.74x = 5,463,494,531.83 - Step 5: Solve for x
x = 5,463,494,531.83/99,728.74 - Step 6: Final answer
x = 54,783.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.