Finding the Fourth Proportional to 81,226.44, 121,839.66 and 53,517.96
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Solution
The fourth proportional to 81,226.44, 121,839.66 and 53,517.96 is: 80,276.94
Step by Step Solution
- Step 1: Write the proportion equation
81,226.44 : 121,839.66 = 53,517.96 : x - Step 2: Convert to fraction form
81,226.44/121,839.66 = 53,517.96/x - Step 3: Cross multiply
81,226.44x = 121,839.66 × 53,517.96 - Step 4: Simplify right side
81,226.44x = 6,520,610,050.29 - Step 5: Solve for x
x = 6,520,610,050.29/81,226.44 - Step 6: Final answer
x = 80,276.94
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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.