Home / 68,249.54-102,374.58-20,864.46

Finding the Fourth Proportional to 68,249.54, 102,374.58 and 20,864.46

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Solution

The fourth proportional to 68,249.54, 102,374.58 and 20,864.46 is: 31,296.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,249.54 : 102,374.58 = 20,864.46 : x
  2. Step 2: Convert to fraction form
    68,249.54/102,374.58 = 20,864.46/x
  3. Step 3: Cross multiply
    68,249.54x = 102,374.58 × 20,864.46
  4. Step 4: Simplify right side
    68,249.54x = 2,135,990,329.43
  5. Step 5: Solve for x
    x = 2,135,990,329.43/68,249.54
  6. Step 6: Final answer
    x = 31,296.77

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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.