Home / 74,478.97-102,766.28-41,774.43

Finding the Fourth Proportional to 74,478.97, 102,766.28 and 41,774.43

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Solution

The fourth proportional to 74,478.97, 102,766.28 and 41,774.43 is: 57,640.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,478.97 : 102,766.28 = 41,774.43 : x
  2. Step 2: Convert to fraction form
    74,478.97/102,766.28 = 41,774.43/x
  3. Step 3: Cross multiply
    74,478.97x = 102,766.28 × 41,774.43
  4. Step 4: Simplify right side
    74,478.97x = 4,293,002,976.09
  5. Step 5: Solve for x
    x = 4,293,002,976.09/74,478.97
  6. Step 6: Final answer
    x = 57,640.47

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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.