Home / 87,308.20-120,358.20-69,410.44

Finding the Fourth Proportional to 87,308.20, 120,358.20 and 69,410.44

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Solution

The fourth proportional to 87,308.20, 120,358.20 and 69,410.44 is: 95,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,308.20 : 120,358.20 = 69,410.44 : x
  2. Step 2: Convert to fraction form
    87,308.20/120,358.20 = 69,410.44/x
  3. Step 3: Cross multiply
    87,308.20x = 120,358.20 × 69,410.44
  4. Step 4: Simplify right side
    87,308.20x = 8,354,115,619.61
  5. Step 5: Solve for x
    x = 8,354,115,619.61/87,308.20
  6. Step 6: Final answer
    x = 95,685.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.