Home / 87,774.90-131,439.60-48,287.40

Finding the Fourth Proportional to 87,774.90, 131,439.60 and 48,287.40

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Solution

The fourth proportional to 87,774.90, 131,439.60 and 48,287.40 is: 72,308.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,774.90 : 131,439.60 = 48,287.40 : x
  2. Step 2: Convert to fraction form
    87,774.90/131,439.60 = 48,287.40/x
  3. Step 3: Cross multiply
    87,774.90x = 131,439.60 × 48,287.40
  4. Step 4: Simplify right side
    87,774.90x = 6,346,876,541.04
  5. Step 5: Solve for x
    x = 6,346,876,541.04/87,774.90
  6. Step 6: Final answer
    x = 72,308.56

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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.