Finding the Fourth Proportional to 102,331.92, 153,407.52 and 39,958.80
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Solution
The fourth proportional to 102,331.92, 153,407.52 and 39,958.80 is: 59,902.92
Step by Step Solution
- Step 1: Write the proportion equation
102,331.92 : 153,407.52 = 39,958.80 : x - Step 2: Convert to fraction form
102,331.92/153,407.52 = 39,958.80/x - Step 3: Cross multiply
102,331.92x = 153,407.52 × 39,958.80 - Step 4: Simplify right side
102,331.92x = 6,129,980,410.18 - Step 5: Solve for x
x = 6,129,980,410.18/102,331.92 - Step 6: Final answer
x = 59,902.92
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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.