Home / 74,185.14-102,375.52-40,193.86

Finding the Fourth Proportional to 74,185.14, 102,375.52 and 40,193.86

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Solution

The fourth proportional to 74,185.14, 102,375.52 and 40,193.86 is: 55,467.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,185.14 : 102,375.52 = 40,193.86 : x
  2. Step 2: Convert to fraction form
    74,185.14/102,375.52 = 40,193.86/x
  3. Step 3: Cross multiply
    74,185.14x = 102,375.52 × 40,193.86
  4. Step 4: Simplify right side
    74,185.14x = 4,114,867,318.31
  5. Step 5: Solve for x
    x = 4,114,867,318.31/74,185.14
  6. Step 6: Final answer
    x = 55,467.54

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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.