Home / 80,552.20-120,713.10-55,899.40

Finding the Fourth Proportional to 80,552.20, 120,713.10 and 55,899.40

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Solution

The fourth proportional to 80,552.20, 120,713.10 and 55,899.40 is: 83,769.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,552.20 : 120,713.10 = 55,899.40 : x
  2. Step 2: Convert to fraction form
    80,552.20/120,713.10 = 55,899.40/x
  3. Step 3: Cross multiply
    80,552.20x = 120,713.10 × 55,899.40
  4. Step 4: Simplify right side
    80,552.20x = 6,747,789,862.14
  5. Step 5: Solve for x
    x = 6,747,789,862.14/80,552.20
  6. Step 6: Final answer
    x = 83,769.16

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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.