Home / 51,408.78-70,932.61-29,891.43

Finding the Fourth Proportional to 51,408.78, 70,932.61 and 29,891.43

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Solution

The fourth proportional to 51,408.78, 70,932.61 and 29,891.43 is: 41,243.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,408.78 : 70,932.61 = 29,891.43 : x
  2. Step 2: Convert to fraction form
    51,408.78/70,932.61 = 29,891.43/x
  3. Step 3: Cross multiply
    51,408.78x = 70,932.61 × 29,891.43
  4. Step 4: Simplify right side
    51,408.78x = 2,120,277,183.90
  5. Step 5: Solve for x
    x = 2,120,277,183.90/51,408.78
  6. Step 6: Final answer
    x = 41,243.49

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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.