Home / 79,481.55-109,684.20-43,671.45

Finding the Fourth Proportional to 79,481.55, 109,684.20 and 43,671.45

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Solution

The fourth proportional to 79,481.55, 109,684.20 and 43,671.45 is: 60,266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,481.55 : 109,684.20 = 43,671.45 : x
  2. Step 2: Convert to fraction form
    79,481.55/109,684.20 = 43,671.45/x
  3. Step 3: Cross multiply
    79,481.55x = 109,684.20 × 43,671.45
  4. Step 4: Simplify right side
    79,481.55x = 4,790,068,056.09
  5. Step 5: Solve for x
    x = 4,790,068,056.09/79,481.55
  6. Step 6: Final answer
    x = 60,266.41

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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.