Home / 87,215.06-120,355.22-48,974.90

Finding the Fourth Proportional to 87,215.06, 120,355.22 and 48,974.90

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Solution

The fourth proportional to 87,215.06, 120,355.22 and 48,974.90 is: 67,584.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,215.06 : 120,355.22 = 48,974.90 : x
  2. Step 2: Convert to fraction form
    87,215.06/120,355.22 = 48,974.90/x
  3. Step 3: Cross multiply
    87,215.06x = 120,355.22 × 48,974.90
  4. Step 4: Simplify right side
    87,215.06x = 5,894,384,863.98
  5. Step 5: Solve for x
    x = 5,894,384,863.98/87,215.06
  6. Step 6: Final answer
    x = 67,584.48

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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.