Home / 81,325.62-121,940.24-25,149.10

Finding the Fourth Proportional to 81,325.62, 121,940.24 and 25,149.10

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Solution

The fourth proportional to 81,325.62, 121,940.24 and 25,149.10 is: 37,708.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,325.62 : 121,940.24 = 25,149.10 : x
  2. Step 2: Convert to fraction form
    81,325.62/121,940.24 = 25,149.10/x
  3. Step 3: Cross multiply
    81,325.62x = 121,940.24 × 25,149.10
  4. Step 4: Simplify right side
    81,325.62x = 3,066,687,289.78
  5. Step 5: Solve for x
    x = 3,066,687,289.78/81,325.62
  6. Step 6: Final answer
    x = 37,708.75

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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.