Home / 49,872.76-68,814.39-31,730.69

Finding the Fourth Proportional to 49,872.76, 68,814.39 and 31,730.69

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Solution

The fourth proportional to 49,872.76, 68,814.39 and 31,730.69 is: 43,781.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,872.76 : 68,814.39 = 31,730.69 : x
  2. Step 2: Convert to fraction form
    49,872.76/68,814.39 = 31,730.69/x
  3. Step 3: Cross multiply
    49,872.76x = 68,814.39 × 31,730.69
  4. Step 4: Simplify right side
    49,872.76x = 2,183,527,712.85
  5. Step 5: Solve for x
    x = 2,183,527,712.85/49,872.76
  6. Step 6: Final answer
    x = 43,781.97

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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.