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Finding the Fourth Proportional to 79,840.62, 110,178.56 and 43,542.50

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Solution

The fourth proportional to 79,840.62, 110,178.56 and 43,542.50 is: 60,087.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,840.62 : 110,178.56 = 43,542.50 : x
  2. Step 2: Convert to fraction form
    79,840.62/110,178.56 = 43,542.50/x
  3. Step 3: Cross multiply
    79,840.62x = 110,178.56 × 43,542.50
  4. Step 4: Simplify right side
    79,840.62x = 4,797,449,506.76
  5. Step 5: Solve for x
    x = 4,797,449,506.76/79,840.62
  6. Step 6: Final answer
    x = 60,087.83

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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.