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Finding the Fourth Proportional to 79,137.60, 109,209.15 and 43,327.29

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Solution

The fourth proportional to 79,137.60, 109,209.15 and 43,327.29 is: 59,791.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,137.60 : 109,209.15 = 43,327.29 : x
  2. Step 2: Convert to fraction form
    79,137.60/109,209.15 = 43,327.29/x
  3. Step 3: Cross multiply
    79,137.60x = 109,209.15 × 43,327.29
  4. Step 4: Simplify right side
    79,137.60x = 4,731,736,512.70
  5. Step 5: Solve for x
    x = 4,731,736,512.70/79,137.60
  6. Step 6: Final answer
    x = 59,791.26

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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.