Home / 87,249.80-120,405.30-49,524.68

Finding the Fourth Proportional to 87,249.80, 120,405.30 and 49,524.68

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Solution

The fourth proportional to 87,249.80, 120,405.30 and 49,524.68 is: 68,344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,249.80 : 120,405.30 = 49,524.68 : x
  2. Step 2: Convert to fraction form
    87,249.80/120,405.30 = 49,524.68/x
  3. Step 3: Cross multiply
    87,249.80x = 120,405.30 × 49,524.68
  4. Step 4: Simplify right side
    87,249.80x = 5,963,033,952.80
  5. Step 5: Solve for x
    x = 5,963,033,952.80/87,249.80
  6. Step 6: Final answer
    x = 68,344.39

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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.