Home / 53,311.24-79,879.34-18,231.76

Finding the Fourth Proportional to 53,311.24, 79,879.34 and 18,231.76

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Solution

The fourth proportional to 53,311.24, 79,879.34 and 18,231.76 is: 27,317.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,311.24 : 79,879.34 = 18,231.76 : x
  2. Step 2: Convert to fraction form
    53,311.24/79,879.34 = 18,231.76/x
  3. Step 3: Cross multiply
    53,311.24x = 79,879.34 × 18,231.76
  4. Step 4: Simplify right side
    53,311.24x = 1,456,340,864.68
  5. Step 5: Solve for x
    x = 1,456,340,864.68/53,311.24
  6. Step 6: Final answer
    x = 27,317.71

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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.