Home / 76,939.22-115,611.78-41,426.80

Finding the Fourth Proportional to 76,939.22, 115,611.78 and 41,426.80

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Solution

The fourth proportional to 76,939.22, 115,611.78 and 41,426.80 is: 62,249.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,939.22 : 115,611.78 = 41,426.80 : x
  2. Step 2: Convert to fraction form
    76,939.22/115,611.78 = 41,426.80/x
  3. Step 3: Cross multiply
    76,939.22x = 115,611.78 × 41,426.80
  4. Step 4: Simplify right side
    76,939.22x = 4,789,426,087.70
  5. Step 5: Solve for x
    x = 4,789,426,087.70/76,939.22
  6. Step 6: Final answer
    x = 62,249.48

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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.