Finding the Fourth Proportional to 86,279.99, 129,466.49 and 36,394.65
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Solution
The fourth proportional to 86,279.99, 129,466.49 and 36,394.65 is: 54,611.59
Step by Step Solution
- Step 1: Write the proportion equation
86,279.99 : 129,466.49 = 36,394.65 : x - Step 2: Convert to fraction form
86,279.99/129,466.49 = 36,394.65/x - Step 3: Cross multiply
86,279.99x = 129,466.49 × 36,394.65 - Step 4: Simplify right side
86,279.99x = 4,711,887,408.31 - Step 5: Solve for x
x = 4,711,887,408.31/86,279.99 - Step 6: Final answer
x = 54,611.59
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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.