Home / 81,905.70-122,844.86-22,747.36

Finding the Fourth Proportional to 81,905.70, 122,844.86 and 22,747.36

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Solution

The fourth proportional to 81,905.70, 122,844.86 and 22,747.36 is: 34,117.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,905.70 : 122,844.86 = 22,747.36 : x
  2. Step 2: Convert to fraction form
    81,905.70/122,844.86 = 22,747.36/x
  3. Step 3: Cross multiply
    81,905.70x = 122,844.86 × 22,747.36
  4. Step 4: Simplify right side
    81,905.70x = 2,794,396,254.57
  5. Step 5: Solve for x
    x = 2,794,396,254.57/81,905.70
  6. Step 6: Final answer
    x = 34,117.24

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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.