Home / 51,414.70-70,951.78-28,753.43

Finding the Fourth Proportional to 51,414.70, 70,951.78 and 28,753.43

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Solution

The fourth proportional to 51,414.70, 70,951.78 and 28,753.43 is: 39,679.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,414.70 : 70,951.78 = 28,753.43 : x
  2. Step 2: Convert to fraction form
    51,414.70/70,951.78 = 28,753.43/x
  3. Step 3: Cross multiply
    51,414.70x = 70,951.78 × 28,753.43
  4. Step 4: Simplify right side
    51,414.70x = 2,040,107,039.61
  5. Step 5: Solve for x
    x = 2,040,107,039.61/51,414.70
  6. Step 6: Final answer
    x = 39,679.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.