Home / 57,781.08-86,662.31-18,329.22

Finding the Fourth Proportional to 57,781.08, 86,662.31 and 18,329.22

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Solution

The fourth proportional to 57,781.08, 86,662.31 and 18,329.22 is: 27,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,781.08 : 86,662.31 = 18,329.22 : x
  2. Step 2: Convert to fraction form
    57,781.08/86,662.31 = 18,329.22/x
  3. Step 3: Cross multiply
    57,781.08x = 86,662.31 × 18,329.22
  4. Step 4: Simplify right side
    57,781.08x = 1,588,452,454.05
  5. Step 5: Solve for x
    x = 1,588,452,454.05/57,781.08
  6. Step 6: Final answer
    x = 27,490.88

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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.