Home / 75,781.78-104,576.45-41,791.70

Finding the Fourth Proportional to 75,781.78, 104,576.45 and 41,791.70

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Solution

The fourth proportional to 75,781.78, 104,576.45 and 41,791.70 is: 57,671.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,781.78 : 104,576.45 = 41,791.70 : x
  2. Step 2: Convert to fraction form
    75,781.78/104,576.45 = 41,791.70/x
  3. Step 3: Cross multiply
    75,781.78x = 104,576.45 × 41,791.70
  4. Step 4: Simplify right side
    75,781.78x = 4,370,427,625.47
  5. Step 5: Solve for x
    x = 4,370,427,625.47/75,781.78
  6. Step 6: Final answer
    x = 57,671.22

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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.