Finding the Fourth Proportional to 80,318.09, 110,839.62 and 44,508.70
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Solution
The fourth proportional to 80,318.09, 110,839.62 and 44,508.70 is: 61,422.37
Step by Step Solution
- Step 1: Write the proportion equation
80,318.09 : 110,839.62 = 44,508.70 : x - Step 2: Convert to fraction form
80,318.09/110,839.62 = 44,508.70/x - Step 3: Cross multiply
80,318.09x = 110,839.62 × 44,508.70 - Step 4: Simplify right side
80,318.09x = 4,933,327,700.15 - Step 5: Solve for x
x = 4,933,327,700.15/80,318.09 - Step 6: Final answer
x = 61,422.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.