Finding the Fourth Proportional to 86,160.34, 129,240.58 and 27,000.62
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Solution
The fourth proportional to 86,160.34, 129,240.58 and 27,000.62 is: 40,500.95
Step by Step Solution
- Step 1: Write the proportion equation
86,160.34 : 129,240.58 = 27,000.62 : x - Step 2: Convert to fraction form
86,160.34/129,240.58 = 27,000.62/x - Step 3: Cross multiply
86,160.34x = 129,240.58 × 27,000.62 - Step 4: Simplify right side
86,160.34x = 3,489,575,789.16 - Step 5: Solve for x
x = 3,489,575,789.16/86,160.34 - Step 6: Final answer
x = 40,500.95
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Double scale
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Similar ratio
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1.5x scale
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.