Home / 76,213.31-114,286.85-40,666.69

Finding the Fourth Proportional to 76,213.31, 114,286.85 and 40,666.69

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Solution

The fourth proportional to 76,213.31, 114,286.85 and 40,666.69 is: 60,982.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,213.31 : 114,286.85 = 40,666.69 : x
  2. Step 2: Convert to fraction form
    76,213.31/114,286.85 = 40,666.69/x
  3. Step 3: Cross multiply
    76,213.31x = 114,286.85 × 40,666.69
  4. Step 4: Simplify right side
    76,213.31x = 4,647,667,992.05
  5. Step 5: Solve for x
    x = 4,647,667,992.05/76,213.31
  6. Step 6: Final answer
    x = 60,982.37

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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.