Home / 75,781.40-104,578.85-41,791.10

Finding the Fourth Proportional to 75,781.40, 104,578.85 and 41,791.10

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Solution

The fourth proportional to 75,781.40, 104,578.85 and 41,791.10 is: 57,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,781.40 : 104,578.85 = 41,791.10 : x
  2. Step 2: Convert to fraction form
    75,781.40/104,578.85 = 41,791.10/x
  3. Step 3: Cross multiply
    75,781.40x = 104,578.85 × 41,791.10
  4. Step 4: Simplify right side
    75,781.40x = 4,370,464,969.28
  5. Step 5: Solve for x
    x = 4,370,464,969.28/75,781.40
  6. Step 6: Final answer
    x = 57,672.00

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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.