Finding the Fourth Proportional to 83,654.26, 125,480.62 and 20,474.65
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Solution
The fourth proportional to 83,654.26, 125,480.62 and 20,474.65 is: 30,711.79
Step by Step Solution
- Step 1: Write the proportion equation
83,654.26 : 125,480.62 = 20,474.65 : x - Step 2: Convert to fraction form
83,654.26/125,480.62 = 20,474.65/x - Step 3: Cross multiply
83,654.26x = 125,480.62 × 20,474.65 - Step 4: Simplify right side
83,654.26x = 2,569,171,776.28 - Step 5: Solve for x
x = 2,569,171,776.28/83,654.26 - Step 6: Final answer
x = 30,711.79
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1.5x scale
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.