Finding the Fourth Proportional to 68,609.19, 102,872.77 and 26,454.31
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Solution
The fourth proportional to 68,609.19, 102,872.77 and 26,454.31 is: 39,665.65
Step by Step Solution
- Step 1: Write the proportion equation
68,609.19 : 102,872.77 = 26,454.31 : x - Step 2: Convert to fraction form
68,609.19/102,872.77 = 26,454.31/x - Step 3: Cross multiply
68,609.19x = 102,872.77 × 26,454.31 - Step 4: Simplify right side
68,609.19x = 2,721,428,148.14 - Step 5: Solve for x
x = 2,721,428,148.14/68,609.19 - Step 6: Final answer
x = 39,665.65
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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.