Home / 87,454.32-131,285.72-83,889.52

Finding the Fourth Proportional to 87,454.32, 131,285.72 and 83,889.52

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Solution

The fourth proportional to 87,454.32, 131,285.72 and 83,889.52 is: 125,934.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,454.32 : 131,285.72 = 83,889.52 : x
  2. Step 2: Convert to fraction form
    87,454.32/131,285.72 = 83,889.52/x
  3. Step 3: Cross multiply
    87,454.32x = 131,285.72 × 83,889.52
  4. Step 4: Simplify right side
    87,454.32x = 11,013,496,033.65
  5. Step 5: Solve for x
    x = 11,013,496,033.65/87,454.32
  6. Step 6: Final answer
    x = 125,934.27

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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.