Home / 40,951.25-61,398.38-18,142.72

Finding the Fourth Proportional to 40,951.25, 61,398.38 and 18,142.72

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Solution

The fourth proportional to 40,951.25, 61,398.38 and 18,142.72 is: 27,201.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,951.25 : 61,398.38 = 18,142.72 : x
  2. Step 2: Convert to fraction form
    40,951.25/61,398.38 = 18,142.72/x
  3. Step 3: Cross multiply
    40,951.25x = 61,398.38 × 18,142.72
  4. Step 4: Simplify right side
    40,951.25x = 1,113,933,219.09
  5. Step 5: Solve for x
    x = 1,113,933,219.09/40,951.25
  6. Step 6: Final answer
    x = 27,201.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.