Home / 81,581.44-122,372.10-22,417.36

Finding the Fourth Proportional to 81,581.44, 122,372.10 and 22,417.36

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Solution

The fourth proportional to 81,581.44, 122,372.10 and 22,417.36 is: 33,626.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,581.44 : 122,372.10 = 22,417.36 : x
  2. Step 2: Convert to fraction form
    81,581.44/122,372.10 = 22,417.36/x
  3. Step 3: Cross multiply
    81,581.44x = 122,372.10 × 22,417.36
  4. Step 4: Simplify right side
    81,581.44x = 2,743,259,419.66
  5. Step 5: Solve for x
    x = 2,743,259,419.66/81,581.44
  6. Step 6: Final answer
    x = 33,626.02

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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.