Home / 87,133.43-130,687.79-27,961.45

Finding the Fourth Proportional to 87,133.43, 130,687.79 and 27,961.45

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Solution

The fourth proportional to 87,133.43, 130,687.79 and 27,961.45 is: 41,938.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,133.43 : 130,687.79 = 27,961.45 : x
  2. Step 2: Convert to fraction form
    87,133.43/130,687.79 = 27,961.45/x
  3. Step 3: Cross multiply
    87,133.43x = 130,687.79 × 27,961.45
  4. Step 4: Simplify right side
    87,133.43x = 3,654,220,105.70
  5. Step 5: Solve for x
    x = 3,654,220,105.70/87,133.43
  6. Step 6: Final answer
    x = 41,938.21

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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.