Finding the Fourth Proportional to 86,063.14, 129,091.20 and 29,915.98
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Solution
The fourth proportional to 86,063.14, 129,091.20 and 29,915.98 is: 44,872.75
Step by Step Solution
- Step 1: Write the proportion equation
86,063.14 : 129,091.20 = 29,915.98 : x - Step 2: Convert to fraction form
86,063.14/129,091.20 = 29,915.98/x - Step 3: Cross multiply
86,063.14x = 129,091.20 × 29,915.98 - Step 4: Simplify right side
86,063.14x = 3,861,889,757.38 - Step 5: Solve for x
x = 3,861,889,757.38/86,063.14 - Step 6: Final answer
x = 44,872.75
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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.