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Finding the Fourth Proportional to 43,808.78, 65,713.08 and 17,519.66

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Solution

The fourth proportional to 43,808.78, 65,713.08 and 17,519.66 is: 26,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,808.78 : 65,713.08 = 17,519.66 : x
  2. Step 2: Convert to fraction form
    43,808.78/65,713.08 = 17,519.66/x
  3. Step 3: Cross multiply
    43,808.78x = 65,713.08 × 17,519.66
  4. Step 4: Simplify right side
    43,808.78x = 1,151,270,819.15
  5. Step 5: Solve for x
    x = 1,151,270,819.15/43,808.78
  6. Step 6: Final answer
    x = 26,279.45

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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.