Home / 87,501.60-131,273.28-28,337.40

Finding the Fourth Proportional to 87,501.60, 131,273.28 and 28,337.40

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Solution

The fourth proportional to 87,501.60, 131,273.28 and 28,337.40 is: 42,512.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,501.60 : 131,273.28 = 28,337.40 : x
  2. Step 2: Convert to fraction form
    87,501.60/131,273.28 = 28,337.40/x
  3. Step 3: Cross multiply
    87,501.60x = 131,273.28 × 28,337.40
  4. Step 4: Simplify right side
    87,501.60x = 3,719,943,444.67
  5. Step 5: Solve for x
    x = 3,719,943,444.67/87,501.60
  6. Step 6: Final answer
    x = 42,512.86

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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.