Home / 83,945.20-125,626.20-57,701.20

Finding the Fourth Proportional to 83,945.20, 125,626.20 and 57,701.20

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Solution

The fourth proportional to 83,945.20, 125,626.20 and 57,701.20 is: 86,351.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,945.20 : 125,626.20 = 57,701.20 : x
  2. Step 2: Convert to fraction form
    83,945.20/125,626.20 = 57,701.20/x
  3. Step 3: Cross multiply
    83,945.20x = 125,626.20 × 57,701.20
  4. Step 4: Simplify right side
    83,945.20x = 7,248,782,491.44
  5. Step 5: Solve for x
    x = 7,248,782,491.44/83,945.20
  6. Step 6: Final answer
    x = 86,351.36

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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.