Home / 79,919.64-119,932.92-33,172.56

Finding the Fourth Proportional to 79,919.64, 119,932.92 and 33,172.56

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Solution

The fourth proportional to 79,919.64, 119,932.92 and 33,172.56 is: 49,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,919.64 : 119,932.92 = 33,172.56 : x
  2. Step 2: Convert to fraction form
    79,919.64/119,932.92 = 33,172.56/x
  3. Step 3: Cross multiply
    79,919.64x = 119,932.92 × 33,172.56
  4. Step 4: Simplify right side
    79,919.64x = 3,978,481,984.68
  5. Step 5: Solve for x
    x = 3,978,481,984.68/79,919.64
  6. Step 6: Final answer
    x = 49,781.03

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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.