Home / 54,115.76-74,679.56-30,242.43

Finding the Fourth Proportional to 54,115.76, 74,679.56 and 30,242.43

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Solution

The fourth proportional to 54,115.76, 74,679.56 and 30,242.43 is: 41,734.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,115.76 : 74,679.56 = 30,242.43 : x
  2. Step 2: Convert to fraction form
    54,115.76/74,679.56 = 30,242.43/x
  3. Step 3: Cross multiply
    54,115.76x = 74,679.56 × 30,242.43
  4. Step 4: Simplify right side
    54,115.76x = 2,258,491,214.52
  5. Step 5: Solve for x
    x = 2,258,491,214.52/54,115.76
  6. Step 6: Final answer
    x = 41,734.45

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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.