Finding the Fourth Proportional to 81,176.00, 121,766.09 and 38,471.46
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Solution
The fourth proportional to 81,176.00, 121,766.09 and 38,471.46 is: 57,708.17
Step by Step Solution
- Step 1: Write the proportion equation
81,176.00 : 121,766.09 = 38,471.46 : x - Step 2: Convert to fraction form
81,176.00/121,766.09 = 38,471.46/x - Step 3: Cross multiply
81,176.00x = 121,766.09 × 38,471.46 - Step 4: Simplify right side
81,176.00x = 4,684,518,611.81 - Step 5: Solve for x
x = 4,684,518,611.81/81,176.00 - Step 6: Final answer
x = 57,708.17
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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.