Finding the Fourth Proportional to 81,135.18, 121,703.04 and 24,974.91
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Solution
The fourth proportional to 81,135.18, 121,703.04 and 24,974.91 is: 37,462.45
Step by Step Solution
- Step 1: Write the proportion equation
81,135.18 : 121,703.04 = 24,974.91 : x - Step 2: Convert to fraction form
81,135.18/121,703.04 = 24,974.91/x - Step 3: Cross multiply
81,135.18x = 121,703.04 × 24,974.91 - Step 4: Simplify right side
81,135.18x = 3,039,522,470.73 - Step 5: Solve for x
x = 3,039,522,470.73/81,135.18 - Step 6: Final answer
x = 37,462.45
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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.