Home / 81,074.20-111,850.23-54,174.10

Finding the Fourth Proportional to 81,074.20, 111,850.23 and 54,174.10

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Solution

The fourth proportional to 81,074.20, 111,850.23 and 54,174.10 is: 74,738.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,074.20 : 111,850.23 = 54,174.10 : x
  2. Step 2: Convert to fraction form
    81,074.20/111,850.23 = 54,174.10/x
  3. Step 3: Cross multiply
    81,074.20x = 111,850.23 × 54,174.10
  4. Step 4: Simplify right side
    81,074.20x = 6,059,385,545.04
  5. Step 5: Solve for x
    x = 6,059,385,545.04/81,074.20
  6. Step 6: Final answer
    x = 74,738.76

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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.