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Finding the Fourth Proportional to 57,144.30, 78,858.27 and 31,994.70

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Solution

The fourth proportional to 57,144.30, 78,858.27 and 31,994.70 is: 44,152.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,144.30 : 78,858.27 = 31,994.70 : x
  2. Step 2: Convert to fraction form
    57,144.30/78,858.27 = 31,994.70/x
  3. Step 3: Cross multiply
    57,144.30x = 78,858.27 × 31,994.70
  4. Step 4: Simplify right side
    57,144.30x = 2,523,046,691.17
  5. Step 5: Solve for x
    x = 2,523,046,691.17/57,144.30
  6. Step 6: Final answer
    x = 44,152.20

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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.