Home / 87,507.61-131,288.65-31,348.20

Finding the Fourth Proportional to 87,507.61, 131,288.65 and 31,348.20

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Solution

The fourth proportional to 87,507.61, 131,288.65 and 31,348.20 is: 47,032.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,507.61 : 131,288.65 = 31,348.20 : x
  2. Step 2: Convert to fraction form
    87,507.61/131,288.65 = 31,348.20/x
  3. Step 3: Cross multiply
    87,507.61x = 131,288.65 × 31,348.20
  4. Step 4: Simplify right side
    87,507.61x = 4,115,662,779.56
  5. Step 5: Solve for x
    x = 4,115,662,779.56/87,507.61
  6. Step 6: Final answer
    x = 47,032.06

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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.