Home / 53,620.92-80,420.82-18,078.78

Finding the Fourth Proportional to 53,620.92, 80,420.82 and 18,078.78

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Solution

The fourth proportional to 53,620.92, 80,420.82 and 18,078.78 is: 27,114.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,620.92 : 80,420.82 = 18,078.78 : x
  2. Step 2: Convert to fraction form
    53,620.92/80,420.82 = 18,078.78/x
  3. Step 3: Cross multiply
    53,620.92x = 80,420.82 × 18,078.78
  4. Step 4: Simplify right side
    53,620.92x = 1,453,910,312.20
  5. Step 5: Solve for x
    x = 1,453,910,312.20/53,620.92
  6. Step 6: Final answer
    x = 27,114.61

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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.