Home / 81,023.06-111,845.94-49,202.22

Finding the Fourth Proportional to 81,023.06, 111,845.94 and 49,202.22

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Solution

The fourth proportional to 81,023.06, 111,845.94 and 49,202.22 is: 67,919.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,023.06 : 111,845.94 = 49,202.22 : x
  2. Step 2: Convert to fraction form
    81,023.06/111,845.94 = 49,202.22/x
  3. Step 3: Cross multiply
    81,023.06x = 111,845.94 × 49,202.22
  4. Step 4: Simplify right side
    81,023.06x = 5,503,068,545.99
  5. Step 5: Solve for x
    x = 5,503,068,545.99/81,023.06
  6. Step 6: Final answer
    x = 67,919.78

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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.