Home / 71,743.11-107,618.49-21,819.39

Finding the Fourth Proportional to 71,743.11, 107,618.49 and 21,819.39

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Solution

The fourth proportional to 71,743.11, 107,618.49 and 21,819.39 is: 32,730.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,743.11 : 107,618.49 = 21,819.39 : x
  2. Step 2: Convert to fraction form
    71,743.11/107,618.49 = 21,819.39/x
  3. Step 3: Cross multiply
    71,743.11x = 107,618.49 × 21,819.39
  4. Step 4: Simplify right side
    71,743.11x = 2,348,169,804.52
  5. Step 5: Solve for x
    x = 2,348,169,804.52/71,743.11
  6. Step 6: Final answer
    x = 32,730.25

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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.