Home / 87,727.64-131,590.24-21,167.21

Finding the Fourth Proportional to 87,727.64, 131,590.24 and 21,167.21

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Solution

The fourth proportional to 87,727.64, 131,590.24 and 21,167.21 is: 31,750.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,727.64 : 131,590.24 = 21,167.21 : x
  2. Step 2: Convert to fraction form
    87,727.64/131,590.24 = 21,167.21/x
  3. Step 3: Cross multiply
    87,727.64x = 131,590.24 × 21,167.21
  4. Step 4: Simplify right side
    87,727.64x = 2,785,398,138.19
  5. Step 5: Solve for x
    x = 2,785,398,138.19/87,727.64
  6. Step 6: Final answer
    x = 31,750.52

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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.