Home / 73,942.25-102,040.31-40,408.25

Finding the Fourth Proportional to 73,942.25, 102,040.31 and 40,408.25

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Solution

The fourth proportional to 73,942.25, 102,040.31 and 40,408.25 is: 55,763.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,942.25 : 102,040.31 = 40,408.25 : x
  2. Step 2: Convert to fraction form
    73,942.25/102,040.31 = 40,408.25/x
  3. Step 3: Cross multiply
    73,942.25x = 102,040.31 × 40,408.25
  4. Step 4: Simplify right side
    73,942.25x = 4,123,270,154.52
  5. Step 5: Solve for x
    x = 4,123,270,154.52/73,942.25
  6. Step 6: Final answer
    x = 55,763.39

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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.