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Finding the Fourth Proportional to 57,530, 86,170.36 and 27,885.82

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Solution

The fourth proportional to 57,530, 86,170.36 and 27,885.82 is: 41,768.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,530 : 86,170.36 = 27,885.82 : x
  2. Step 2: Convert to fraction form
    57,530/86,170.36 = 27,885.82/x
  3. Step 3: Cross multiply
    57,530x = 86,170.36 × 27,885.82
  4. Step 4: Simplify right side
    57,530x = 2,402,931,148.30
  5. Step 5: Solve for x
    x = 2,402,931,148.30/57,530
  6. Step 6: Final answer
    x = 41,768.31

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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.