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Finding the Fourth Proportional to 79,591.25, 109,833.60 and 43,781.25

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Solution

The fourth proportional to 79,591.25, 109,833.60 and 43,781.25 is: 60,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,591.25 : 109,833.60 = 43,781.25 : x
  2. Step 2: Convert to fraction form
    79,591.25/109,833.60 = 43,781.25/x
  3. Step 3: Cross multiply
    79,591.25x = 109,833.60 × 43,781.25
  4. Step 4: Simplify right side
    79,591.25x = 4,808,652,300
  5. Step 5: Solve for x
    x = 4,808,652,300/79,591.25
  6. Step 6: Final answer
    x = 60,416.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.