Home / 53,898.28-80,847.42-20,628.54

Finding the Fourth Proportional to 53,898.28, 80,847.42 and 20,628.54

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Solution

The fourth proportional to 53,898.28, 80,847.42 and 20,628.54 is: 30,942.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,898.28 : 80,847.42 = 20,628.54 : x
  2. Step 2: Convert to fraction form
    53,898.28/80,847.42 = 20,628.54/x
  3. Step 3: Cross multiply
    53,898.28x = 80,847.42 × 20,628.54
  4. Step 4: Simplify right side
    53,898.28x = 1,667,764,237.37
  5. Step 5: Solve for x
    x = 1,667,764,237.37/53,898.28
  6. Step 6: Final answer
    x = 30,942.81

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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.