Home / 74,531.97-102,856.05-40,542.39

Finding the Fourth Proportional to 74,531.97, 102,856.05 and 40,542.39

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Solution

The fourth proportional to 74,531.97, 102,856.05 and 40,542.39 is: 55,949.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,531.97 : 102,856.05 = 40,542.39 : x
  2. Step 2: Convert to fraction form
    74,531.97/102,856.05 = 40,542.39/x
  3. Step 3: Cross multiply
    74,531.97x = 102,856.05 × 40,542.39
  4. Step 4: Simplify right side
    74,531.97x = 4,170,030,092.96
  5. Step 5: Solve for x
    x = 4,170,030,092.96/74,531.97
  6. Step 6: Final answer
    x = 55,949.55

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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.