Home / 57,905.28-86,868.86-19,944.44

Finding the Fourth Proportional to 57,905.28, 86,868.86 and 19,944.44

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Solution

The fourth proportional to 57,905.28, 86,868.86 and 19,944.44 is: 29,920.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,905.28 : 86,868.86 = 19,944.44 : x
  2. Step 2: Convert to fraction form
    57,905.28/86,868.86 = 19,944.44/x
  3. Step 3: Cross multiply
    57,905.28x = 86,868.86 × 19,944.44
  4. Step 4: Simplify right side
    57,905.28x = 1,732,550,766.14
  5. Step 5: Solve for x
    x = 1,732,550,766.14/57,905.28
  6. Step 6: Final answer
    x = 29,920.43

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Why These Related Problems?

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