Home / 68,019.66-102,029.35-18,099.75

Finding the Fourth Proportional to 68,019.66, 102,029.35 and 18,099.75

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Solution

The fourth proportional to 68,019.66, 102,029.35 and 18,099.75 is: 27,149.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,019.66 : 102,029.35 = 18,099.75 : x
  2. Step 2: Convert to fraction form
    68,019.66/102,029.35 = 18,099.75/x
  3. Step 3: Cross multiply
    68,019.66x = 102,029.35 × 18,099.75
  4. Step 4: Simplify right side
    68,019.66x = 1,846,705,727.66
  5. Step 5: Solve for x
    x = 1,846,705,727.66/68,019.66
  6. Step 6: Final answer
    x = 27,149.59

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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.