Home / 49,957.38-74,934.34-12,517.78

Finding the Fourth Proportional to 49,957.38, 74,934.34 and 12,517.78

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Solution

The fourth proportional to 49,957.38, 74,934.34 and 12,517.78 is: 18,776.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,957.38 : 74,934.34 = 12,517.78 : x
  2. Step 2: Convert to fraction form
    49,957.38/74,934.34 = 12,517.78/x
  3. Step 3: Cross multiply
    49,957.38x = 74,934.34 × 12,517.78
  4. Step 4: Simplify right side
    49,957.38x = 938,011,582.57
  5. Step 5: Solve for x
    x = 938,011,582.57/49,957.38
  6. Step 6: Final answer
    x = 18,776.24

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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.