Home / 57,763.91-86,645.17-18,321.36

Finding the Fourth Proportional to 57,763.91, 86,645.17 and 18,321.36

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Solution

The fourth proportional to 57,763.91, 86,645.17 and 18,321.36 is: 27,481.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,763.91 : 86,645.17 = 18,321.36 : x
  2. Step 2: Convert to fraction form
    57,763.91/86,645.17 = 18,321.36/x
  3. Step 3: Cross multiply
    57,763.91x = 86,645.17 × 18,321.36
  4. Step 4: Simplify right side
    57,763.91x = 1,587,457,351.83
  5. Step 5: Solve for x
    x = 1,587,457,351.83/57,763.91
  6. Step 6: Final answer
    x = 27,481.82

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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.