Home / 74,863.38-103,309.92-40,872.54

Finding the Fourth Proportional to 74,863.38, 103,309.92 and 40,872.54

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Solution

The fourth proportional to 74,863.38, 103,309.92 and 40,872.54 is: 56,403.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,863.38 : 103,309.92 = 40,872.54 : x
  2. Step 2: Convert to fraction form
    74,863.38/103,309.92 = 40,872.54/x
  3. Step 3: Cross multiply
    74,863.38x = 103,309.92 × 40,872.54
  4. Step 4: Simplify right side
    74,863.38x = 4,222,538,837.60
  5. Step 5: Solve for x
    x = 4,222,538,837.60/74,863.38
  6. Step 6: Final answer
    x = 56,403.26

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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.