Home / 75,111.75-103,654.22-41,120.13

Finding the Fourth Proportional to 75,111.75, 103,654.22 and 41,120.13

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Solution

The fourth proportional to 75,111.75, 103,654.22 and 41,120.13 is: 56,745.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,111.75 : 103,654.22 = 41,120.13 : x
  2. Step 2: Convert to fraction form
    75,111.75/103,654.22 = 41,120.13/x
  3. Step 3: Cross multiply
    75,111.75x = 103,654.22 × 41,120.13
  4. Step 4: Simplify right side
    75,111.75x = 4,262,274,795.85
  5. Step 5: Solve for x
    x = 4,262,274,795.85/75,111.75
  6. Step 6: Final answer
    x = 56,745.78

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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.