Home / 54,287.91-74,919.47-30,414.78

Finding the Fourth Proportional to 54,287.91, 74,919.47 and 30,414.78

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Solution

The fourth proportional to 54,287.91, 74,919.47 and 30,414.78 is: 41,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,287.91 : 74,919.47 = 30,414.78 : x
  2. Step 2: Convert to fraction form
    54,287.91/74,919.47 = 30,414.78/x
  3. Step 3: Cross multiply
    54,287.91x = 74,919.47 × 30,414.78
  4. Step 4: Simplify right side
    54,287.91x = 2,278,659,045.69
  5. Step 5: Solve for x
    x = 2,278,659,045.69/54,287.91
  6. Step 6: Final answer
    x = 41,973.60

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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.