Home / 81,462.20-122,193.30-53,468.60

Finding the Fourth Proportional to 81,462.20, 122,193.30 and 53,468.60

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Solution

The fourth proportional to 81,462.20, 122,193.30 and 53,468.60 is: 80,202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,462.20 : 122,193.30 = 53,468.60 : x
  2. Step 2: Convert to fraction form
    81,462.20/122,193.30 = 53,468.60/x
  3. Step 3: Cross multiply
    81,462.20x = 122,193.30 × 53,468.60
  4. Step 4: Simplify right side
    81,462.20x = 6,533,504,680.38
  5. Step 5: Solve for x
    x = 6,533,504,680.38/81,462.20
  6. Step 6: Final answer
    x = 80,202.90

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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.