Home / 57,211.78-85,816.58-17,768.02

Finding the Fourth Proportional to 57,211.78, 85,816.58 and 17,768.02

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Solution

The fourth proportional to 57,211.78, 85,816.58 and 17,768.02 is: 26,651.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,211.78 : 85,816.58 = 17,768.02 : x
  2. Step 2: Convert to fraction form
    57,211.78/85,816.58 = 17,768.02/x
  3. Step 3: Cross multiply
    57,211.78x = 85,816.58 × 17,768.02
  4. Step 4: Simplify right side
    57,211.78x = 1,524,790,709.77
  5. Step 5: Solve for x
    x = 1,524,790,709.77/57,211.78
  6. Step 6: Final answer
    x = 26,651.69

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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.