Home / 49,956.20-74,963.10-18,813.80

Finding the Fourth Proportional to 49,956.20, 74,963.10 and 18,813.80

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Solution

The fourth proportional to 49,956.20, 74,963.10 and 18,813.80 is: 28,231.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,956.20 : 74,963.10 = 18,813.80 : x
  2. Step 2: Convert to fraction form
    49,956.20/74,963.10 = 18,813.80/x
  3. Step 3: Cross multiply
    49,956.20x = 74,963.10 × 18,813.80
  4. Step 4: Simplify right side
    49,956.20x = 1,410,340,770.78
  5. Step 5: Solve for x
    x = 1,410,340,770.78/49,956.20
  6. Step 6: Final answer
    x = 28,231.55

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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.