Home / 53,287.20-79,923.24-18,221.76

Finding the Fourth Proportional to 53,287.20, 79,923.24 and 18,221.76

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Solution

The fourth proportional to 53,287.20, 79,923.24 and 18,221.76 is: 27,330.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,287.20 : 79,923.24 = 18,221.76 : x
  2. Step 2: Convert to fraction form
    53,287.20/79,923.24 = 18,221.76/x
  3. Step 3: Cross multiply
    53,287.20x = 79,923.24 × 18,221.76
  4. Step 4: Simplify right side
    53,287.20x = 1,456,342,097.70
  5. Step 5: Solve for x
    x = 1,456,342,097.70/53,287.20
  6. Step 6: Final answer
    x = 27,330.05

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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.