Home / 67,039.56-100,581.20-31,974.66

Finding the Fourth Proportional to 67,039.56, 100,581.20 and 31,974.66

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Solution

The fourth proportional to 67,039.56, 100,581.20 and 31,974.66 is: 47,972.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,039.56 : 100,581.20 = 31,974.66 : x
  2. Step 2: Convert to fraction form
    67,039.56/100,581.20 = 31,974.66/x
  3. Step 3: Cross multiply
    67,039.56x = 100,581.20 × 31,974.66
  4. Step 4: Simplify right side
    67,039.56x = 3,216,049,512.52
  5. Step 5: Solve for x
    x = 3,216,049,512.52/67,039.56
  6. Step 6: Final answer
    x = 47,972.41

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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.