Home / 81,745.32-122,615.55-22,584.54

Finding the Fourth Proportional to 81,745.32, 122,615.55 and 22,584.54

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Solution

The fourth proportional to 81,745.32, 122,615.55 and 22,584.54 is: 33,876.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,745.32 : 122,615.55 = 22,584.54 : x
  2. Step 2: Convert to fraction form
    81,745.32/122,615.55 = 22,584.54/x
  3. Step 3: Cross multiply
    81,745.32x = 122,615.55 × 22,584.54
  4. Step 4: Simplify right side
    81,745.32x = 2,769,215,793.60
  5. Step 5: Solve for x
    x = 2,769,215,793.60/81,745.32
  6. Step 6: Final answer
    x = 33,876.14

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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.