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Finding the Fourth Proportional to 79,839.88, 119,726.88 and 27,253.60

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Solution

The fourth proportional to 79,839.88, 119,726.88 and 27,253.60 is: 40,869.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,839.88 : 119,726.88 = 27,253.60 : x
  2. Step 2: Convert to fraction form
    79,839.88/119,726.88 = 27,253.60/x
  3. Step 3: Cross multiply
    79,839.88x = 119,726.88 × 27,253.60
  4. Step 4: Simplify right side
    79,839.88x = 3,262,988,496.77
  5. Step 5: Solve for x
    x = 3,262,988,496.77/79,839.88
  6. Step 6: Final answer
    x = 40,869.16

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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.