Finding the Fourth Proportional to 86,592.50, 119,580.18 and 81,874.99
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Solution
The fourth proportional to 86,592.50, 119,580.18 and 81,874.99 is: 113,065.52
Step by Step Solution
- Step 1: Write the proportion equation
86,592.50 : 119,580.18 = 81,874.99 : x - Step 2: Convert to fraction form
86,592.50/119,580.18 = 81,874.99/x - Step 3: Cross multiply
86,592.50x = 119,580.18 × 81,874.99 - Step 4: Simplify right side
86,592.50x = 9,790,626,041.70 - Step 5: Solve for x
x = 9,790,626,041.70/86,592.50 - Step 6: Final answer
x = 113,065.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.