Home / 73,132.48-109,719.37-20,542.42

Finding the Fourth Proportional to 73,132.48, 109,719.37 and 20,542.42

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Solution

The fourth proportional to 73,132.48, 109,719.37 and 20,542.42 is: 30,819.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,132.48 : 109,719.37 = 20,542.42 : x
  2. Step 2: Convert to fraction form
    73,132.48/109,719.37 = 20,542.42/x
  3. Step 3: Cross multiply
    73,132.48x = 109,719.37 × 20,542.42
  4. Step 4: Simplify right side
    73,132.48x = 2,253,900,832.08
  5. Step 5: Solve for x
    x = 2,253,900,832.08/73,132.48
  6. Step 6: Final answer
    x = 30,819.43

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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.