Home / 57,198.39-85,783.92-19,759.80

Finding the Fourth Proportional to 57,198.39, 85,783.92 and 19,759.80

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Solution

The fourth proportional to 57,198.39, 85,783.92 and 19,759.80 is: 29,634.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,198.39 : 85,783.92 = 19,759.80 : x
  2. Step 2: Convert to fraction form
    57,198.39/85,783.92 = 19,759.80/x
  3. Step 3: Cross multiply
    57,198.39x = 85,783.92 × 19,759.80
  4. Step 4: Simplify right side
    57,198.39x = 1,695,073,102.42
  5. Step 5: Solve for x
    x = 1,695,073,102.42/57,198.39
  6. Step 6: Final answer
    x = 29,634.98

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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.