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Finding the Fourth Proportional to 41,209.60, 61,819.23 and 13,119.82

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Solution

The fourth proportional to 41,209.60, 61,819.23 and 13,119.82 is: 19,681.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,209.60 : 61,819.23 = 13,119.82 : x
  2. Step 2: Convert to fraction form
    41,209.60/61,819.23 = 13,119.82/x
  3. Step 3: Cross multiply
    41,209.60x = 61,819.23 × 13,119.82
  4. Step 4: Simplify right side
    41,209.60x = 811,057,170.14
  5. Step 5: Solve for x
    x = 811,057,170.14/41,209.60
  6. Step 6: Final answer
    x = 19,681.27

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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.