Home / 57,669.90-86,544-20,229.66

Finding the Fourth Proportional to 57,669.90, 86,544 and 20,229.66

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Solution

The fourth proportional to 57,669.90, 86,544 and 20,229.66 is: 30,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,669.90 : 86,544 = 20,229.66 : x
  2. Step 2: Convert to fraction form
    57,669.90/86,544 = 20,229.66/x
  3. Step 3: Cross multiply
    57,669.90x = 86,544 × 20,229.66
  4. Step 4: Simplify right side
    57,669.90x = 1,750,755,695.04
  5. Step 5: Solve for x
    x = 1,750,755,695.04/57,669.90
  6. Step 6: Final answer
    x = 30,358.22

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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.