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Finding the Fourth Proportional to 57,045.54, 85,420.68 and 50,697.97

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Solution

The fourth proportional to 57,045.54, 85,420.68 and 50,697.97 is: 75,915.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,045.54 : 85,420.68 = 50,697.97 : x
  2. Step 2: Convert to fraction form
    57,045.54/85,420.68 = 50,697.97/x
  3. Step 3: Cross multiply
    57,045.54x = 85,420.68 × 50,697.97
  4. Step 4: Simplify right side
    57,045.54x = 4,330,655,072.02
  5. Step 5: Solve for x
    x = 4,330,655,072.02/57,045.54
  6. Step 6: Final answer
    x = 75,915.75

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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.