Finding the Fourth Proportional to 86,583.62, 129,640.80 and 44,943.14
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Solution
The fourth proportional to 86,583.62, 129,640.80 and 44,943.14 is: 67,292.92
Step by Step Solution
- Step 1: Write the proportion equation
86,583.62 : 129,640.80 = 44,943.14 : x - Step 2: Convert to fraction form
86,583.62/129,640.80 = 44,943.14/x - Step 3: Cross multiply
86,583.62x = 129,640.80 × 44,943.14 - Step 4: Simplify right side
86,583.62x = 5,826,464,624.11 - Step 5: Solve for x
x = 5,826,464,624.11/86,583.62 - Step 6: Final answer
x = 67,292.92
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1.5x scale
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.