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Finding the Fourth Proportional to 79,119.60, 109,183.59 and 43,308.96

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Solution

The fourth proportional to 79,119.60, 109,183.59 and 43,308.96 is: 59,765.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,119.60 : 109,183.59 = 43,308.96 : x
  2. Step 2: Convert to fraction form
    79,119.60/109,183.59 = 43,308.96/x
  3. Step 3: Cross multiply
    79,119.60x = 109,183.59 × 43,308.96
  4. Step 4: Simplify right side
    79,119.60x = 4,728,627,731.97
  5. Step 5: Solve for x
    x = 4,728,627,731.97/79,119.60
  6. Step 6: Final answer
    x = 59,765.57

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1.5x scale

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.