Home / 71,768.33-99,037.85-39,936.54

Finding the Fourth Proportional to 71,768.33, 99,037.85 and 39,936.54

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Solution

The fourth proportional to 71,768.33, 99,037.85 and 39,936.54 is: 55,111.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,768.33 : 99,037.85 = 39,936.54 : x
  2. Step 2: Convert to fraction form
    71,768.33/99,037.85 = 39,936.54/x
  3. Step 3: Cross multiply
    71,768.33x = 99,037.85 × 39,936.54
  4. Step 4: Simplify right side
    71,768.33x = 3,955,229,058.04
  5. Step 5: Solve for x
    x = 3,955,229,058.04/71,768.33
  6. Step 6: Final answer
    x = 55,111.06

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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.