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Finding the Fourth Proportional to 79,839, 110,178.63 and 48,008.43

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Solution

The fourth proportional to 79,839, 110,178.63 and 48,008.43 is: 66,252.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,839 : 110,178.63 = 48,008.43 : x
  2. Step 2: Convert to fraction form
    79,839/110,178.63 = 48,008.43/x
  3. Step 3: Cross multiply
    79,839x = 110,178.63 × 48,008.43
  4. Step 4: Simplify right side
    79,839x = 5,289,503,045.85
  5. Step 5: Solve for x
    x = 5,289,503,045.85/79,839
  6. Step 6: Final answer
    x = 66,252.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.