Home / 75,781.85-104,578.32-41,791.75

Finding the Fourth Proportional to 75,781.85, 104,578.32 and 41,791.75

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Solution

The fourth proportional to 75,781.85, 104,578.32 and 41,791.75 is: 57,672.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,781.85 : 104,578.32 = 41,791.75 : x
  2. Step 2: Convert to fraction form
    75,781.85/104,578.32 = 41,791.75/x
  3. Step 3: Cross multiply
    75,781.85x = 104,578.32 × 41,791.75
  4. Step 4: Simplify right side
    75,781.85x = 4,370,510,978.86
  5. Step 5: Solve for x
    x = 4,370,510,978.86/75,781.85
  6. Step 6: Final answer
    x = 57,672.27

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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.