Home / 81,801.11-122,704.40-22,631.82

Finding the Fourth Proportional to 81,801.11, 122,704.40 and 22,631.82

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Solution

The fourth proportional to 81,801.11, 122,704.40 and 22,631.82 is: 33,948.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,801.11 : 122,704.40 = 22,631.82 : x
  2. Step 2: Convert to fraction form
    81,801.11/122,704.40 = 22,631.82/x
  3. Step 3: Cross multiply
    81,801.11x = 122,704.40 × 22,631.82
  4. Step 4: Simplify right side
    81,801.11x = 2,777,023,950.59
  5. Step 5: Solve for x
    x = 2,777,023,950.59/81,801.11
  6. Step 6: Final answer
    x = 33,948.49

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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.