Finding the Fourth Proportional to 87,086.49, 130,648.19 and 27,963.68
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Solution
The fourth proportional to 87,086.49, 130,648.19 and 27,963.68 is: 41,951.45
Step by Step Solution
- Step 1: Write the proportion equation
87,086.49 : 130,648.19 = 27,963.68 : x - Step 2: Convert to fraction form
87,086.49/130,648.19 = 27,963.68/x - Step 3: Cross multiply
87,086.49x = 130,648.19 × 27,963.68 - Step 4: Simplify right side
87,086.49x = 3,653,404,276.87 - Step 5: Solve for x
x = 3,653,404,276.87/87,086.49 - Step 6: Final answer
x = 41,951.45
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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.