Finding the Fourth Proportional to 86,318.10, 129,282.75 and 44,211.06
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Solution
The fourth proportional to 86,318.10, 129,282.75 and 44,211.06 is: 66,217.02
Step by Step Solution
- Step 1: Write the proportion equation
86,318.10 : 129,282.75 = 44,211.06 : x - Step 2: Convert to fraction form
86,318.10/129,282.75 = 44,211.06/x - Step 3: Cross multiply
86,318.10x = 129,282.75 × 44,211.06 - Step 4: Simplify right side
86,318.10x = 5,715,727,417.22 - Step 5: Solve for x
x = 5,715,727,417.22/86,318.10 - Step 6: Final answer
x = 66,217.02
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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.