Home / 74,467.22-102,765.45-40,475.78

Finding the Fourth Proportional to 74,467.22, 102,765.45 and 40,475.78

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Solution

The fourth proportional to 74,467.22, 102,765.45 and 40,475.78 is: 55,856.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,467.22 : 102,765.45 = 40,475.78 : x
  2. Step 2: Convert to fraction form
    74,467.22/102,765.45 = 40,475.78/x
  3. Step 3: Cross multiply
    74,467.22x = 102,765.45 × 40,475.78
  4. Step 4: Simplify right side
    74,467.22x = 4,159,511,745.80
  5. Step 5: Solve for x
    x = 4,159,511,745.80/74,467.22
  6. Step 6: Final answer
    x = 55,856.95

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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.