Home / 88,778.20-122,513.78-48,491.96

Finding the Fourth Proportional to 88,778.20, 122,513.78 and 48,491.96

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Solution

The fourth proportional to 88,778.20, 122,513.78 and 48,491.96 is: 66,918.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,778.20 : 122,513.78 = 48,491.96 : x
  2. Step 2: Convert to fraction form
    88,778.20/122,513.78 = 48,491.96/x
  3. Step 3: Cross multiply
    88,778.20x = 122,513.78 × 48,491.96
  4. Step 4: Simplify right side
    88,778.20x = 5,940,933,319.21
  5. Step 5: Solve for x
    x = 5,940,933,319.21/88,778.20
  6. Step 6: Final answer
    x = 66,918.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.