Home / 81,193.24-111,974.10-50,981.44

Finding the Fourth Proportional to 81,193.24, 111,974.10 and 50,981.44

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Solution

The fourth proportional to 81,193.24, 111,974.10 and 50,981.44 is: 70,308.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,193.24 : 111,974.10 = 50,981.44 : x
  2. Step 2: Convert to fraction form
    81,193.24/111,974.10 = 50,981.44/x
  3. Step 3: Cross multiply
    81,193.24x = 111,974.10 × 50,981.44
  4. Step 4: Simplify right side
    81,193.24x = 5,708,600,860.70
  5. Step 5: Solve for x
    x = 5,708,600,860.70/81,193.24
  6. Step 6: Final answer
    x = 70,308.82

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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.