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Finding the Fourth Proportional to 97,760.76, 134,912.69 and 55,318.38

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Solution

The fourth proportional to 97,760.76, 134,912.69 and 55,318.38 is: 76,340.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,760.76 : 134,912.69 = 55,318.38 : x
  2. Step 2: Convert to fraction form
    97,760.76/134,912.69 = 55,318.38/x
  3. Step 3: Cross multiply
    97,760.76x = 134,912.69 × 55,318.38
  4. Step 4: Simplify right side
    97,760.76x = 7,463,151,452.24
  5. Step 5: Solve for x
    x = 7,463,151,452.24/97,760.76
  6. Step 6: Final answer
    x = 76,340.97

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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.