Home / 87,005.15-130,505.34-27,839.97

Finding the Fourth Proportional to 87,005.15, 130,505.34 and 27,839.97

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Solution

The fourth proportional to 87,005.15, 130,505.34 and 27,839.97 is: 41,759.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,005.15 : 130,505.34 = 27,839.97 : x
  2. Step 2: Convert to fraction form
    87,005.15/130,505.34 = 27,839.97/x
  3. Step 3: Cross multiply
    87,005.15x = 130,505.34 × 27,839.97
  4. Step 4: Simplify right side
    87,005.15x = 3,633,264,750.44
  5. Step 5: Solve for x
    x = 3,633,264,750.44/87,005.15
  6. Step 6: Final answer
    x = 41,759.19

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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.