Finding the Fourth Proportional to 83,489.28, 125,253.12 and 27,331.20
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Solution
The fourth proportional to 83,489.28, 125,253.12 and 27,331.20 is: 41,003.09
Step by Step Solution
- Step 1: Write the proportion equation
83,489.28 : 125,253.12 = 27,331.20 : x - Step 2: Convert to fraction form
83,489.28/125,253.12 = 27,331.20/x - Step 3: Cross multiply
83,489.28x = 125,253.12 × 27,331.20 - Step 4: Simplify right side
83,489.28x = 3,423,318,073.34 - Step 5: Solve for x
x = 3,423,318,073.34/83,489.28 - Step 6: Final answer
x = 41,003.09
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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.