Finding the Fourth Proportional to 81,634.26, 122,414.42 and 29,045.12
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Solution
The fourth proportional to 81,634.26, 122,414.42 and 29,045.12 is: 43,554.53
Step by Step Solution
- Step 1: Write the proportion equation
81,634.26 : 122,414.42 = 29,045.12 : x - Step 2: Convert to fraction form
81,634.26/122,414.42 = 29,045.12/x - Step 3: Cross multiply
81,634.26x = 122,414.42 × 29,045.12 - Step 4: Simplify right side
81,634.26x = 3,555,541,518.63 - Step 5: Solve for x
x = 3,555,541,518.63/81,634.26 - Step 6: Final answer
x = 43,554.53
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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.