Finding the Fourth Proportional to 86,190.18, 129,285.28 and 27,031.02
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Solution
The fourth proportional to 86,190.18, 129,285.28 and 27,031.02 is: 40,546.53
Step by Step Solution
- Step 1: Write the proportion equation
86,190.18 : 129,285.28 = 27,031.02 : x - Step 2: Convert to fraction form
86,190.18/129,285.28 = 27,031.02/x - Step 3: Cross multiply
86,190.18x = 129,285.28 × 27,031.02 - Step 4: Simplify right side
86,190.18x = 3,494,712,989.39 - Step 5: Solve for x
x = 3,494,712,989.39/86,190.18 - Step 6: Final answer
x = 40,546.53
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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.