Home / 81,819.35-122,764.56-44,405.85

Finding the Fourth Proportional to 81,819.35, 122,764.56 and 44,405.85

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Solution

The fourth proportional to 81,819.35, 122,764.56 and 44,405.85 is: 66,628.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,819.35 : 122,764.56 = 44,405.85 : x
  2. Step 2: Convert to fraction form
    81,819.35/122,764.56 = 44,405.85/x
  3. Step 3: Cross multiply
    81,819.35x = 122,764.56 × 44,405.85
  4. Step 4: Simplify right side
    81,819.35x = 5,451,464,636.68
  5. Step 5: Solve for x
    x = 5,451,464,636.68/81,819.35
  6. Step 6: Final answer
    x = 66,628.06

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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.