Home / 81,010.31-111,791.61-44,215.11

Finding the Fourth Proportional to 81,010.31, 111,791.61 and 44,215.11

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Solution

The fourth proportional to 81,010.31, 111,791.61 and 44,215.11 is: 61,015.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,010.31 : 111,791.61 = 44,215.11 : x
  2. Step 2: Convert to fraction form
    81,010.31/111,791.61 = 44,215.11/x
  3. Step 3: Cross multiply
    81,010.31x = 111,791.61 × 44,215.11
  4. Step 4: Simplify right side
    81,010.31x = 4,942,878,333.23
  5. Step 5: Solve for x
    x = 4,942,878,333.23/81,010.31
  6. Step 6: Final answer
    x = 61,015.43

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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.