Home / 87,498.60-131,268.78-28,334.40

Finding the Fourth Proportional to 87,498.60, 131,268.78 and 28,334.40

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Solution

The fourth proportional to 87,498.60, 131,268.78 and 28,334.40 is: 42,508.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,498.60 : 131,268.78 = 28,334.40 : x
  2. Step 2: Convert to fraction form
    87,498.60/131,268.78 = 28,334.40/x
  3. Step 3: Cross multiply
    87,498.60x = 131,268.78 × 28,334.40
  4. Step 4: Simplify right side
    87,498.60x = 3,719,422,120.03
  5. Step 5: Solve for x
    x = 3,719,422,120.03/87,498.60
  6. Step 6: Final answer
    x = 42,508.36

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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.