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Finding the Fourth Proportional to 74,015.94, 102,144.44 and 40,481.94

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Solution

The fourth proportional to 74,015.94, 102,144.44 and 40,481.94 is: 55,866.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,015.94 : 102,144.44 = 40,481.94 : x
  2. Step 2: Convert to fraction form
    74,015.94/102,144.44 = 40,481.94/x
  3. Step 3: Cross multiply
    74,015.94x = 102,144.44 × 40,481.94
  4. Step 4: Simplify right side
    74,015.94x = 4,135,004,889.00
  5. Step 5: Solve for x
    x = 4,135,004,889.00/74,015.94
  6. Step 6: Final answer
    x = 55,866.41

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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.