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Finding the Fourth Proportional to 68,019.41, 102,028.97 and 18,099.50

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Solution

The fourth proportional to 68,019.41, 102,028.97 and 18,099.50 is: 27,149.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,019.41 : 102,028.97 = 18,099.50 : x
  2. Step 2: Convert to fraction form
    68,019.41/102,028.97 = 18,099.50/x
  3. Step 3: Cross multiply
    68,019.41x = 102,028.97 × 18,099.50
  4. Step 4: Simplify right side
    68,019.41x = 1,846,673,342.52
  5. Step 5: Solve for x
    x = 1,846,673,342.52/68,019.41
  6. Step 6: Final answer
    x = 27,149.21

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1.5x scale

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.