Home / 52,743.20-79,115.13-21,578.45

Finding the Fourth Proportional to 52,743.20, 79,115.13 and 21,578.45

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Solution

The fourth proportional to 52,743.20, 79,115.13 and 21,578.45 is: 32,367.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,743.20 : 79,115.13 = 21,578.45 : x
  2. Step 2: Convert to fraction form
    52,743.20/79,115.13 = 21,578.45/x
  3. Step 3: Cross multiply
    52,743.20x = 79,115.13 × 21,578.45
  4. Step 4: Simplify right side
    52,743.20x = 1,707,181,876.95
  5. Step 5: Solve for x
    x = 1,707,181,876.95/52,743.20
  6. Step 6: Final answer
    x = 32,367.81

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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.