Home / 57,769.21-86,658.68-20,325.34

Finding the Fourth Proportional to 57,769.21, 86,658.68 and 20,325.34

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Solution

The fourth proportional to 57,769.21, 86,658.68 and 20,325.34 is: 30,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,769.21 : 86,658.68 = 20,325.34 : x
  2. Step 2: Convert to fraction form
    57,769.21/86,658.68 = 20,325.34/x
  3. Step 3: Cross multiply
    57,769.21x = 86,658.68 × 20,325.34
  4. Step 4: Simplify right side
    57,769.21x = 1,761,367,134.95
  5. Step 5: Solve for x
    x = 1,761,367,134.95/57,769.21
  6. Step 6: Final answer
    x = 30,489.72

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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.