Home / 81,789.77-122,684.65-22,623.90

Finding the Fourth Proportional to 81,789.77, 122,684.65 and 22,623.90

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Solution

The fourth proportional to 81,789.77, 122,684.65 and 22,623.90 is: 33,935.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,789.77 : 122,684.65 = 22,623.90 : x
  2. Step 2: Convert to fraction form
    81,789.77/122,684.65 = 22,623.90/x
  3. Step 3: Cross multiply
    81,789.77x = 122,684.65 × 22,623.90
  4. Step 4: Simplify right side
    81,789.77x = 2,775,605,196.58
  5. Step 5: Solve for x
    x = 2,775,605,196.58/81,789.77
  6. Step 6: Final answer
    x = 33,935.85

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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.