Home / 68,286.35-102,441.62-20,900.39

Finding the Fourth Proportional to 68,286.35, 102,441.62 and 20,900.39

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Solution

The fourth proportional to 68,286.35, 102,441.62 and 20,900.39 is: 31,354.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,286.35 : 102,441.62 = 20,900.39 : x
  2. Step 2: Convert to fraction form
    68,286.35/102,441.62 = 20,900.39/x
  3. Step 3: Cross multiply
    68,286.35x = 102,441.62 × 20,900.39
  4. Step 4: Simplify right side
    68,286.35x = 2,141,069,350.27
  5. Step 5: Solve for x
    x = 2,141,069,350.27/68,286.35
  6. Step 6: Final answer
    x = 31,354.28

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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.