Home / 57,394.62-86,105.82-19,949.28

Finding the Fourth Proportional to 57,394.62, 86,105.82 and 19,949.28

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Solution

The fourth proportional to 57,394.62, 86,105.82 and 19,949.28 is: 29,928.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,394.62 : 86,105.82 = 19,949.28 : x
  2. Step 2: Convert to fraction form
    57,394.62/86,105.82 = 19,949.28/x
  3. Step 3: Cross multiply
    57,394.62x = 86,105.82 × 19,949.28
  4. Step 4: Simplify right side
    57,394.62x = 1,717,749,112.81
  5. Step 5: Solve for x
    x = 1,717,749,112.81/57,394.62
  6. Step 6: Final answer
    x = 29,928.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.