Home / 87,001.32-130,553.82-31,601.64

Finding the Fourth Proportional to 87,001.32, 130,553.82 and 31,601.64

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Solution

The fourth proportional to 87,001.32, 130,553.82 and 31,601.64 is: 47,421.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,001.32 : 130,553.82 = 31,601.64 : x
  2. Step 2: Convert to fraction form
    87,001.32/130,553.82 = 31,601.64/x
  3. Step 3: Cross multiply
    87,001.32x = 130,553.82 × 31,601.64
  4. Step 4: Simplify right side
    87,001.32x = 4,125,714,820.26
  5. Step 5: Solve for x
    x = 4,125,714,820.26/87,001.32
  6. Step 6: Final answer
    x = 47,421.29

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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.