Finding the Fourth Proportional to 81,115.93, 121,674.17 and 24,955.66
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Solution
The fourth proportional to 81,115.93, 121,674.17 and 24,955.66 is: 37,433.57
Step by Step Solution
- Step 1: Write the proportion equation
81,115.93 : 121,674.17 = 24,955.66 : x - Step 2: Convert to fraction form
81,115.93/121,674.17 = 24,955.66/x - Step 3: Cross multiply
81,115.93x = 121,674.17 × 24,955.66 - Step 4: Simplify right side
81,115.93x = 3,036,459,217.30 - Step 5: Solve for x
x = 3,036,459,217.30/81,115.93 - Step 6: Final answer
x = 37,433.57
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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.