Home / 57,949.72-86,920.26-18,511

Finding the Fourth Proportional to 57,949.72, 86,920.26 and 18,511

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Solution

The fourth proportional to 57,949.72, 86,920.26 and 18,511 is: 27,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,949.72 : 86,920.26 = 18,511 : x
  2. Step 2: Convert to fraction form
    57,949.72/86,920.26 = 18,511/x
  3. Step 3: Cross multiply
    57,949.72x = 86,920.26 × 18,511
  4. Step 4: Simplify right side
    57,949.72x = 1,608,980,932.86
  5. Step 5: Solve for x
    x = 1,608,980,932.86/57,949.72
  6. Step 6: Final answer
    x = 27,765.12

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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.