Home / 54,121.78-74,683.17-30,245.14

Finding the Fourth Proportional to 54,121.78, 74,683.17 and 30,245.14

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Solution

The fourth proportional to 54,121.78, 74,683.17 and 30,245.14 is: 41,735.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,121.78 : 74,683.17 = 30,245.14 : x
  2. Step 2: Convert to fraction form
    54,121.78/74,683.17 = 30,245.14/x
  3. Step 3: Cross multiply
    54,121.78x = 74,683.17 × 30,245.14
  4. Step 4: Simplify right side
    54,121.78x = 2,258,802,932.29
  5. Step 5: Solve for x
    x = 2,258,802,932.29/54,121.78
  6. Step 6: Final answer
    x = 41,735.56

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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.