Home / 87,439.88-120,651.99-49,194.11

Finding the Fourth Proportional to 87,439.88, 120,651.99 and 49,194.11

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Solution

The fourth proportional to 87,439.88, 120,651.99 and 49,194.11 is: 67,879.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,439.88 : 120,651.99 = 49,194.11 : x
  2. Step 2: Convert to fraction form
    87,439.88/120,651.99 = 49,194.11/x
  3. Step 3: Cross multiply
    87,439.88x = 120,651.99 × 49,194.11
  4. Step 4: Simplify right side
    87,439.88x = 5,935,367,267.78
  5. Step 5: Solve for x
    x = 5,935,367,267.78/87,439.88
  6. Step 6: Final answer
    x = 67,879.41

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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.