Home / 57,659.45-86,488.66-18,216.56

Finding the Fourth Proportional to 57,659.45, 86,488.66 and 18,216.56

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Solution

The fourth proportional to 57,659.45, 86,488.66 and 18,216.56 is: 27,324.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,659.45 : 86,488.66 = 18,216.56 : x
  2. Step 2: Convert to fraction form
    57,659.45/86,488.66 = 18,216.56/x
  3. Step 3: Cross multiply
    57,659.45x = 86,488.66 × 18,216.56
  4. Step 4: Simplify right side
    57,659.45x = 1,575,526,103.20
  5. Step 5: Solve for x
    x = 1,575,526,103.20/57,659.45
  6. Step 6: Final answer
    x = 27,324.68

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1.5x scale

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.