Home / 57,208.32-85,791.42-19,758.78

Finding the Fourth Proportional to 57,208.32, 85,791.42 and 19,758.78

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Solution

The fourth proportional to 57,208.32, 85,791.42 and 19,758.78 is: 29,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,208.32 : 85,791.42 = 19,758.78 : x
  2. Step 2: Convert to fraction form
    57,208.32/85,791.42 = 19,758.78/x
  3. Step 3: Cross multiply
    57,208.32x = 85,791.42 × 19,758.78
  4. Step 4: Simplify right side
    57,208.32x = 1,695,133,793.67
  5. Step 5: Solve for x
    x = 1,695,133,793.67/57,208.32
  6. Step 6: Final answer
    x = 29,630.90

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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.