Home / 120,519.20-180,777.86-36,279

Finding the Fourth Proportional to 120,519.20, 180,777.86 and 36,279

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Solution

The fourth proportional to 120,519.20, 180,777.86 and 36,279 is: 54,418.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,519.20 : 180,777.86 = 36,279 : x
  2. Step 2: Convert to fraction form
    120,519.20/180,777.86 = 36,279/x
  3. Step 3: Cross multiply
    120,519.20x = 180,777.86 × 36,279
  4. Step 4: Simplify right side
    120,519.20x = 6,558,439,982.94
  5. Step 5: Solve for x
    x = 6,558,439,982.94/120,519.20
  6. Step 6: Final answer
    x = 54,418.22

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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.