Home / 57,906.28-86,870.36-19,945.44

Finding the Fourth Proportional to 57,906.28, 86,870.36 and 19,945.44

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Solution

The fourth proportional to 57,906.28, 86,870.36 and 19,945.44 is: 29,921.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,906.28 : 86,870.36 = 19,945.44 : x
  2. Step 2: Convert to fraction form
    57,906.28/86,870.36 = 19,945.44/x
  3. Step 3: Cross multiply
    57,906.28x = 86,870.36 × 19,945.44
  4. Step 4: Simplify right side
    57,906.28x = 1,732,667,553.16
  5. Step 5: Solve for x
    x = 1,732,667,553.16/57,906.28
  6. Step 6: Final answer
    x = 29,921.93

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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.