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Finding the Fourth Proportional to 67,300, 92,874 and 39,022.09

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Solution

The fourth proportional to 67,300, 92,874 and 39,022.09 is: 53,850.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,300 : 92,874 = 39,022.09 : x
  2. Step 2: Convert to fraction form
    67,300/92,874 = 39,022.09/x
  3. Step 3: Cross multiply
    67,300x = 92,874 × 39,022.09
  4. Step 4: Simplify right side
    67,300x = 3,624,137,586.66
  5. Step 5: Solve for x
    x = 3,624,137,586.66/67,300
  6. Step 6: Final answer
    x = 53,850.48

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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.