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Finding the Fourth Proportional to 72,593.46, 100,179 and 40,761.54

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Solution

The fourth proportional to 72,593.46, 100,179 and 40,761.54 is: 56,250.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,593.46 : 100,179 = 40,761.54 : x
  2. Step 2: Convert to fraction form
    72,593.46/100,179 = 40,761.54/x
  3. Step 3: Cross multiply
    72,593.46x = 100,179 × 40,761.54
  4. Step 4: Simplify right side
    72,593.46x = 4,083,450,315.66
  5. Step 5: Solve for x
    x = 4,083,450,315.66/72,593.46
  6. Step 6: Final answer
    x = 56,250.94

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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.