Home / 87,132.43-130,686.29-27,960.45

Finding the Fourth Proportional to 87,132.43, 130,686.29 and 27,960.45

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Solution

The fourth proportional to 87,132.43, 130,686.29 and 27,960.45 is: 41,936.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,132.43 : 130,686.29 = 27,960.45 : x
  2. Step 2: Convert to fraction form
    87,132.43/130,686.29 = 27,960.45/x
  3. Step 3: Cross multiply
    87,132.43x = 130,686.29 × 27,960.45
  4. Step 4: Simplify right side
    87,132.43x = 3,654,047,477.23
  5. Step 5: Solve for x
    x = 3,654,047,477.23/87,132.43
  6. Step 6: Final answer
    x = 41,936.71

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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.