Finding the Fourth Proportional to 86,211.43, 129,149.04 and 48,657.91
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Solution
The fourth proportional to 86,211.43, 129,149.04 and 48,657.91 is: 72,891.99
Step by Step Solution
- Step 1: Write the proportion equation
86,211.43 : 129,149.04 = 48,657.91 : x - Step 2: Convert to fraction form
86,211.43/129,149.04 = 48,657.91/x - Step 3: Cross multiply
86,211.43x = 129,149.04 × 48,657.91 - Step 4: Simplify right side
86,211.43x = 6,284,122,364.91 - Step 5: Solve for x
x = 6,284,122,364.91/86,211.43 - Step 6: Final answer
x = 72,891.99
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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.