Home / 49,287.69-68,007.48-30,171.78

Finding the Fourth Proportional to 49,287.69, 68,007.48 and 30,171.78

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Solution

The fourth proportional to 49,287.69, 68,007.48 and 30,171.78 is: 41,631.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,287.69 : 68,007.48 = 30,171.78 : x
  2. Step 2: Convert to fraction form
    49,287.69/68,007.48 = 30,171.78/x
  3. Step 3: Cross multiply
    49,287.69x = 68,007.48 × 30,171.78
  4. Step 4: Simplify right side
    49,287.69x = 2,051,906,724.91
  5. Step 5: Solve for x
    x = 2,051,906,724.91/49,287.69
  6. Step 6: Final answer
    x = 41,631.22

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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.