Home / 57,947.54-86,923.42-20,511.56

Finding the Fourth Proportional to 57,947.54, 86,923.42 and 20,511.56

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Solution

The fourth proportional to 57,947.54, 86,923.42 and 20,511.56 is: 30,768.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,947.54 : 86,923.42 = 20,511.56 : x
  2. Step 2: Convert to fraction form
    57,947.54/86,923.42 = 20,511.56/x
  3. Step 3: Cross multiply
    57,947.54x = 86,923.42 × 20,511.56
  4. Step 4: Simplify right side
    57,947.54x = 1,782,935,110.76
  5. Step 5: Solve for x
    x = 1,782,935,110.76/57,947.54
  6. Step 6: Final answer
    x = 30,768.09

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1.5x scale

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.