Home / 49,942.88-68,921.17-28,721.69

Finding the Fourth Proportional to 49,942.88, 68,921.17 and 28,721.69

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Solution

The fourth proportional to 49,942.88, 68,921.17 and 28,721.69 is: 39,635.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,942.88 : 68,921.17 = 28,721.69 : x
  2. Step 2: Convert to fraction form
    49,942.88/68,921.17 = 28,721.69/x
  3. Step 3: Cross multiply
    49,942.88x = 68,921.17 × 28,721.69
  4. Step 4: Simplify right side
    49,942.88x = 1,979,532,062.77
  5. Step 5: Solve for x
    x = 1,979,532,062.77/49,942.88
  6. Step 6: Final answer
    x = 39,635.93

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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.