Home / 81,456.22-122,239.68-44,027.76

Finding the Fourth Proportional to 81,456.22, 122,239.68 and 44,027.76

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Solution

The fourth proportional to 81,456.22, 122,239.68 and 44,027.76 is: 66,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,456.22 : 122,239.68 = 44,027.76 : x
  2. Step 2: Convert to fraction form
    81,456.22/122,239.68 = 44,027.76/x
  3. Step 3: Cross multiply
    81,456.22x = 122,239.68 × 44,027.76
  4. Step 4: Simplify right side
    81,456.22x = 5,381,939,293.52
  5. Step 5: Solve for x
    x = 5,381,939,293.52/81,456.22
  6. Step 6: Final answer
    x = 66,071.56

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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.