Home / 51,205.52-76,843.11-31,423.70

Finding the Fourth Proportional to 51,205.52, 76,843.11 and 31,423.70

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Solution

The fourth proportional to 51,205.52, 76,843.11 and 31,423.70 is: 47,156.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,205.52 : 76,843.11 = 31,423.70 : x
  2. Step 2: Convert to fraction form
    51,205.52/76,843.11 = 31,423.70/x
  3. Step 3: Cross multiply
    51,205.52x = 76,843.11 × 31,423.70
  4. Step 4: Simplify right side
    51,205.52x = 2,414,694,451.49
  5. Step 5: Solve for x
    x = 2,414,694,451.49/51,205.52
  6. Step 6: Final answer
    x = 47,156.92

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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.