Finding the Fourth Proportional to 86,610.72, 129,919.68 and 27,445.08
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Solution
The fourth proportional to 86,610.72, 129,919.68 and 27,445.08 is: 41,168.76
Step by Step Solution
- Step 1: Write the proportion equation
86,610.72 : 129,919.68 = 27,445.08 : x - Step 2: Convert to fraction form
86,610.72/129,919.68 = 27,445.08/x - Step 3: Cross multiply
86,610.72x = 129,919.68 × 27,445.08 - Step 4: Simplify right side
86,610.72x = 3,565,656,011.17 - Step 5: Solve for x
x = 3,565,656,011.17/86,610.72 - Step 6: Final answer
x = 41,168.76
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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.