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Finding the Fourth Proportional to 57,117.40, 85,676.10 and 50,896.60

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Solution

The fourth proportional to 57,117.40, 85,676.10 and 50,896.60 is: 76,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,117.40 : 85,676.10 = 50,896.60 : x
  2. Step 2: Convert to fraction form
    57,117.40/85,676.10 = 50,896.60/x
  3. Step 3: Cross multiply
    57,117.40x = 85,676.10 × 50,896.60
  4. Step 4: Simplify right side
    57,117.40x = 4,360,622,191.26
  5. Step 5: Solve for x
    x = 4,360,622,191.26/57,117.40
  6. Step 6: Final answer
    x = 76,344.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.