Home / 81,579.20-122,345.13-34,193.03

Finding the Fourth Proportional to 81,579.20, 122,345.13 and 34,193.03

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Solution

The fourth proportional to 81,579.20, 122,345.13 and 34,193.03 is: 51,279.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,579.20 : 122,345.13 = 34,193.03 : x
  2. Step 2: Convert to fraction form
    81,579.20/122,345.13 = 34,193.03/x
  3. Step 3: Cross multiply
    81,579.20x = 122,345.13 × 34,193.03
  4. Step 4: Simplify right side
    81,579.20x = 4,183,350,700.44
  5. Step 5: Solve for x
    x = 4,183,350,700.44/81,579.20
  6. Step 6: Final answer
    x = 51,279.62

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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.