Finding the Fourth Proportional to 83,864.40, 125,760.15 and 27,682.80
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Solution
The fourth proportional to 83,864.40, 125,760.15 and 27,682.80 is: 41,512.17
Step by Step Solution
- Step 1: Write the proportion equation
83,864.40 : 125,760.15 = 27,682.80 : x - Step 2: Convert to fraction form
83,864.40/125,760.15 = 27,682.80/x - Step 3: Cross multiply
83,864.40x = 125,760.15 × 27,682.80 - Step 4: Simplify right side
83,864.40x = 3,481,393,080.42 - Step 5: Solve for x
x = 3,481,393,080.42/83,864.40 - Step 6: Final answer
x = 41,512.17
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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.