Home / 70,976.21-106,464.30-18,385.69

Finding the Fourth Proportional to 70,976.21, 106,464.30 and 18,385.69

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Solution

The fourth proportional to 70,976.21, 106,464.30 and 18,385.69 is: 27,578.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,976.21 : 106,464.30 = 18,385.69 : x
  2. Step 2: Convert to fraction form
    70,976.21/106,464.30 = 18,385.69/x
  3. Step 3: Cross multiply
    70,976.21x = 106,464.30 × 18,385.69
  4. Step 4: Simplify right side
    70,976.21x = 1,957,419,418.65
  5. Step 5: Solve for x
    x = 1,957,419,418.65/70,976.21
  6. Step 6: Final answer
    x = 27,578.53

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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.