Finding the Fourth Proportional to 86,379.84, 129,575.04 and 27,217.44
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Solution
The fourth proportional to 86,379.84, 129,575.04 and 27,217.44 is: 40,827.82
Step by Step Solution
- Step 1: Write the proportion equation
86,379.84 : 129,575.04 = 27,217.44 : x - Step 2: Convert to fraction form
86,379.84/129,575.04 = 27,217.44/x - Step 3: Cross multiply
86,379.84x = 129,575.04 × 27,217.44 - Step 4: Simplify right side
86,379.84x = 3,526,700,876.70 - Step 5: Solve for x
x = 3,526,700,876.70/86,379.84 - Step 6: Final answer
x = 40,827.82
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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.