Home / 68,221.20-102,562.20-58,083.60

Finding the Fourth Proportional to 68,221.20, 102,562.20 and 58,083.60

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Solution

The fourth proportional to 68,221.20, 102,562.20 and 58,083.60 is: 87,321.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,221.20 : 102,562.20 = 58,083.60 : x
  2. Step 2: Convert to fraction form
    68,221.20/102,562.20 = 58,083.60/x
  3. Step 3: Cross multiply
    68,221.20x = 102,562.20 × 58,083.60
  4. Step 4: Simplify right side
    68,221.20x = 5,957,181,799.92
  5. Step 5: Solve for x
    x = 5,957,181,799.92/68,221.20
  6. Step 6: Final answer
    x = 87,321.56

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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.