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Finding the Fourth Proportional to 73,760.75, 101,786.78 and 40,226.75

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Solution

The fourth proportional to 73,760.75, 101,786.78 and 40,226.75 is: 55,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,760.75 : 101,786.78 = 40,226.75 : x
  2. Step 2: Convert to fraction form
    73,760.75/101,786.78 = 40,226.75/x
  3. Step 3: Cross multiply
    73,760.75x = 101,786.78 × 40,226.75
  4. Step 4: Simplify right side
    73,760.75x = 4,094,551,352.37
  5. Step 5: Solve for x
    x = 4,094,551,352.37/73,760.75
  6. Step 6: Final answer
    x = 55,511.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.