Finding the Fourth Proportional to 86,660.67, 129,990.66 and 27,500.95
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Solution
The fourth proportional to 86,660.67, 129,990.66 and 27,500.95 is: 41,251.32
Step by Step Solution
- Step 1: Write the proportion equation
86,660.67 : 129,990.66 = 27,500.95 : x - Step 2: Convert to fraction form
86,660.67/129,990.66 = 27,500.95/x - Step 3: Cross multiply
86,660.67x = 129,990.66 × 27,500.95 - Step 4: Simplify right side
86,660.67x = 3,574,866,641.13 - Step 5: Solve for x
x = 3,574,866,641.13/86,660.67 - Step 6: Final answer
x = 41,251.32
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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.