Home / 49,939.97-68,919.18-28,719.24

Finding the Fourth Proportional to 49,939.97, 68,919.18 and 28,719.24

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Solution

The fourth proportional to 49,939.97, 68,919.18 and 28,719.24 is: 39,633.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,939.97 : 68,919.18 = 28,719.24 : x
  2. Step 2: Convert to fraction form
    49,939.97/68,919.18 = 28,719.24/x
  3. Step 3: Cross multiply
    49,939.97x = 68,919.18 × 28,719.24
  4. Step 4: Simplify right side
    49,939.97x = 1,979,306,471.02
  5. Step 5: Solve for x
    x = 1,979,306,471.02/49,939.97
  6. Step 6: Final answer
    x = 39,633.72

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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.