Home / 66,086.12-91,198.92-35,871.44

Finding the Fourth Proportional to 66,086.12, 91,198.92 and 35,871.44

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Solution

The fourth proportional to 66,086.12, 91,198.92 and 35,871.44 is: 49,502.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,086.12 : 91,198.92 = 35,871.44 : x
  2. Step 2: Convert to fraction form
    66,086.12/91,198.92 = 35,871.44/x
  3. Step 3: Cross multiply
    66,086.12x = 91,198.92 × 35,871.44
  4. Step 4: Simplify right side
    66,086.12x = 3,271,436,130.85
  5. Step 5: Solve for x
    x = 3,271,436,130.85/66,086.12
  6. Step 6: Final answer
    x = 49,502.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.