Home / 80,031.78-120,053.85-23,867.61

Finding the Fourth Proportional to 80,031.78, 120,053.85 and 23,867.61

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Solution

The fourth proportional to 80,031.78, 120,053.85 and 23,867.61 is: 35,803.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,031.78 : 120,053.85 = 23,867.61 : x
  2. Step 2: Convert to fraction form
    80,031.78/120,053.85 = 23,867.61/x
  3. Step 3: Cross multiply
    80,031.78x = 120,053.85 × 23,867.61
  4. Step 4: Simplify right side
    80,031.78x = 2,865,398,470.80
  5. Step 5: Solve for x
    x = 2,865,398,470.80/80,031.78
  6. Step 6: Final answer
    x = 35,803.26

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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.