Home / 54,367.20-81,514.08-18,819.36

Finding the Fourth Proportional to 54,367.20, 81,514.08 and 18,819.36

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Solution

The fourth proportional to 54,367.20, 81,514.08 and 18,819.36 is: 28,216.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,367.20 : 81,514.08 = 18,819.36 : x
  2. Step 2: Convert to fraction form
    54,367.20/81,514.08 = 18,819.36/x
  3. Step 3: Cross multiply
    54,367.20x = 81,514.08 × 18,819.36
  4. Step 4: Simplify right side
    54,367.20x = 1,534,042,816.59
  5. Step 5: Solve for x
    x = 1,534,042,816.59/54,367.20
  6. Step 6: Final answer
    x = 28,216.33

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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.