Home / 81,908.10-122,862.20-22,743.77

Finding the Fourth Proportional to 81,908.10, 122,862.20 and 22,743.77

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Solution

The fourth proportional to 81,908.10, 122,862.20 and 22,743.77 is: 34,115.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,908.10 : 122,862.20 = 22,743.77 : x
  2. Step 2: Convert to fraction form
    81,908.10/122,862.20 = 22,743.77/x
  3. Step 3: Cross multiply
    81,908.10x = 122,862.20 × 22,743.77
  4. Step 4: Simplify right side
    81,908.10x = 2,794,348,890.46
  5. Step 5: Solve for x
    x = 2,794,348,890.46/81,908.10
  6. Step 6: Final answer
    x = 34,115.66

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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.