Finding the Fourth Proportional to 81,707.26, 122,560.98 and 25,547.66
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Solution
The fourth proportional to 81,707.26, 122,560.98 and 25,547.66 is: 38,321.52
Step by Step Solution
- Step 1: Write the proportion equation
81,707.26 : 122,560.98 = 25,547.66 : x - Step 2: Convert to fraction form
81,707.26/122,560.98 = 25,547.66/x - Step 3: Cross multiply
81,707.26x = 122,560.98 × 25,547.66 - Step 4: Simplify right side
81,707.26x = 3,131,146,246.31 - Step 5: Solve for x
x = 3,131,146,246.31/81,707.26 - Step 6: Final answer
x = 38,321.52
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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.