Home / 54,449.16-75,135.96-49,987.68

Finding the Fourth Proportional to 54,449.16, 75,135.96 and 49,987.68

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Solution

The fourth proportional to 54,449.16, 75,135.96 and 49,987.68 is: 68,979.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,449.16 : 75,135.96 = 49,987.68 : x
  2. Step 2: Convert to fraction form
    54,449.16/75,135.96 = 49,987.68/x
  3. Step 3: Cross multiply
    54,449.16x = 75,135.96 × 49,987.68
  4. Step 4: Simplify right side
    54,449.16x = 3,755,872,324.97
  5. Step 5: Solve for x
    x = 3,755,872,324.97/54,449.16
  6. Step 6: Final answer
    x = 68,979.44

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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.