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Finding the Fourth Proportional to 57,361.20, 79,171.14 and 31,876.32

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Solution

The fourth proportional to 57,361.20, 79,171.14 and 31,876.32 is: 43,996.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,361.20 : 79,171.14 = 31,876.32 : x
  2. Step 2: Convert to fraction form
    57,361.20/79,171.14 = 31,876.32/x
  3. Step 3: Cross multiply
    57,361.20x = 79,171.14 × 31,876.32
  4. Step 4: Simplify right side
    57,361.20x = 2,523,684,593.40
  5. Step 5: Solve for x
    x = 2,523,684,593.40/57,361.20
  6. Step 6: Final answer
    x = 43,996.37

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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.