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Finding the Fourth Proportional to 57,710.54, 79,673.68 and 43,990.88

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Solution

The fourth proportional to 57,710.54, 79,673.68 and 43,990.88 is: 60,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,710.54 : 79,673.68 = 43,990.88 : x
  2. Step 2: Convert to fraction form
    57,710.54/79,673.68 = 43,990.88/x
  3. Step 3: Cross multiply
    57,710.54x = 79,673.68 × 43,990.88
  4. Step 4: Simplify right side
    57,710.54x = 3,504,915,400.82
  5. Step 5: Solve for x
    x = 3,504,915,400.82/57,710.54
  6. Step 6: Final answer
    x = 60,732.67

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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.