Home / 81,823.17-122,734.56-22,658.66

Finding the Fourth Proportional to 81,823.17, 122,734.56 and 22,658.66

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Solution

The fourth proportional to 81,823.17, 122,734.56 and 22,658.66 is: 33,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,823.17 : 122,734.56 = 22,658.66 : x
  2. Step 2: Convert to fraction form
    81,823.17/122,734.56 = 22,658.66/x
  3. Step 3: Cross multiply
    81,823.17x = 122,734.56 × 22,658.66
  4. Step 4: Simplify right side
    81,823.17x = 2,781,000,051.62
  5. Step 5: Solve for x
    x = 2,781,000,051.62/81,823.17
  6. Step 6: Final answer
    x = 33,987.93

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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.