Home / 40,689.20-61,033.79-11,107.82

Finding the Fourth Proportional to 40,689.20, 61,033.79 and 11,107.82

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Solution

The fourth proportional to 40,689.20, 61,033.79 and 11,107.82 is: 16,661.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,689.20 : 61,033.79 = 11,107.82 : x
  2. Step 2: Convert to fraction form
    40,689.20/61,033.79 = 11,107.82/x
  3. Step 3: Cross multiply
    40,689.20x = 61,033.79 × 11,107.82
  4. Step 4: Simplify right side
    40,689.20x = 677,952,353.24
  5. Step 5: Solve for x
    x = 677,952,353.24/40,689.20
  6. Step 6: Final answer
    x = 16,661.73

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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.