Home / 57,293.30-85,919.36-19,843.28

Finding the Fourth Proportional to 57,293.30, 85,919.36 and 19,843.28

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Solution

The fourth proportional to 57,293.30, 85,919.36 and 19,843.28 is: 29,757.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,293.30 : 85,919.36 = 19,843.28 : x
  2. Step 2: Convert to fraction form
    57,293.30/85,919.36 = 19,843.28/x
  3. Step 3: Cross multiply
    57,293.30x = 85,919.36 × 19,843.28
  4. Step 4: Simplify right side
    57,293.30x = 1,704,921,917.90
  5. Step 5: Solve for x
    x = 1,704,921,917.90/57,293.30
  6. Step 6: Final answer
    x = 29,757.79

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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.