Home / 74,504.14-102,813.46-40,512.70

Finding the Fourth Proportional to 74,504.14, 102,813.46 and 40,512.70

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Solution

The fourth proportional to 74,504.14, 102,813.46 and 40,512.70 is: 55,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,504.14 : 102,813.46 = 40,512.70 : x
  2. Step 2: Convert to fraction form
    74,504.14/102,813.46 = 40,512.70/x
  3. Step 3: Cross multiply
    74,504.14x = 102,813.46 × 40,512.70
  4. Step 4: Simplify right side
    74,504.14x = 4,165,250,860.94
  5. Step 5: Solve for x
    x = 4,165,250,860.94/74,504.14
  6. Step 6: Final answer
    x = 55,906.30

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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.