Finding the Fourth Proportional to 81,304.10, 121,974.08 and 24,375.74
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Solution
The fourth proportional to 81,304.10, 121,974.08 and 24,375.74 is: 36,568.98
Step by Step Solution
- Step 1: Write the proportion equation
81,304.10 : 121,974.08 = 24,375.74 : x - Step 2: Convert to fraction form
81,304.10/121,974.08 = 24,375.74/x - Step 3: Cross multiply
81,304.10x = 121,974.08 × 24,375.74 - Step 4: Simplify right side
81,304.10x = 2,973,208,338.94 - Step 5: Solve for x
x = 2,973,208,338.94/81,304.10 - Step 6: Final answer
x = 36,568.98
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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.