Home / 87,947.10-131,920.92-21,387.24

Finding the Fourth Proportional to 87,947.10, 131,920.92 and 21,387.24

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Solution

The fourth proportional to 87,947.10, 131,920.92 and 21,387.24 is: 32,080.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,947.10 : 131,920.92 = 21,387.24 : x
  2. Step 2: Convert to fraction form
    87,947.10/131,920.92 = 21,387.24/x
  3. Step 3: Cross multiply
    87,947.10x = 131,920.92 × 21,387.24
  4. Step 4: Simplify right side
    87,947.10x = 2,821,424,377.06
  5. Step 5: Solve for x
    x = 2,821,424,377.06/87,947.10
  6. Step 6: Final answer
    x = 32,080.93

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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.