Finding the Fourth Proportional to 86,461.20, 129,680.87 and 27,302.85
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Solution
The fourth proportional to 86,461.20, 129,680.87 and 27,302.85 is: 40,950.82
Step by Step Solution
- Step 1: Write the proportion equation
86,461.20 : 129,680.87 = 27,302.85 : x - Step 2: Convert to fraction form
86,461.20/129,680.87 = 27,302.85/x - Step 3: Cross multiply
86,461.20x = 129,680.87 × 27,302.85 - Step 4: Simplify right side
86,461.20x = 3,540,657,204.97 - Step 5: Solve for x
x = 3,540,657,204.97/86,461.20 - Step 6: Final answer
x = 40,950.82
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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.