Home / 80,132.20-120,209.10-27,557.80

Finding the Fourth Proportional to 80,132.20, 120,209.10 and 27,557.80

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Solution

The fourth proportional to 80,132.20, 120,209.10 and 27,557.80 is: 41,340.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,132.20 : 120,209.10 = 27,557.80 : x
  2. Step 2: Convert to fraction form
    80,132.20/120,209.10 = 27,557.80/x
  3. Step 3: Cross multiply
    80,132.20x = 120,209.10 × 27,557.80
  4. Step 4: Simplify right side
    80,132.20x = 3,312,698,335.98
  5. Step 5: Solve for x
    x = 3,312,698,335.98/80,132.20
  6. Step 6: Final answer
    x = 41,340.41

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1.5x scale

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.