Home / 57,930.20-86,899.26-18,490.30

Finding the Fourth Proportional to 57,930.20, 86,899.26 and 18,490.30

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Solution

The fourth proportional to 57,930.20, 86,899.26 and 18,490.30 is: 27,736.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,930.20 : 86,899.26 = 18,490.30 : x
  2. Step 2: Convert to fraction form
    57,930.20/86,899.26 = 18,490.30/x
  3. Step 3: Cross multiply
    57,930.20x = 86,899.26 × 18,490.30
  4. Step 4: Simplify right side
    57,930.20x = 1,606,793,387.18
  5. Step 5: Solve for x
    x = 1,606,793,387.18/57,930.20
  6. Step 6: Final answer
    x = 27,736.71

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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.