Finding the Fourth Proportional to 83,838.44, 125,757.26 and 20,658.44
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Solution
The fourth proportional to 83,838.44, 125,757.26 and 20,658.44 is: 30,987.56
Step by Step Solution
- Step 1: Write the proportion equation
83,838.44 : 125,757.26 = 20,658.44 : x - Step 2: Convert to fraction form
83,838.44/125,757.26 = 20,658.44/x - Step 3: Cross multiply
83,838.44x = 125,757.26 × 20,658.44 - Step 4: Simplify right side
83,838.44x = 2,597,948,810.27 - Step 5: Solve for x
x = 2,597,948,810.27/83,838.44 - Step 6: Final answer
x = 30,987.56
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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.