Home / 73,922.20-102,012.94-40,388.20

Finding the Fourth Proportional to 73,922.20, 102,012.94 and 40,388.20

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Solution

The fourth proportional to 73,922.20, 102,012.94 and 40,388.20 is: 55,735.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,922.20 : 102,012.94 = 40,388.20 : x
  2. Step 2: Convert to fraction form
    73,922.20/102,012.94 = 40,388.20/x
  3. Step 3: Cross multiply
    73,922.20x = 102,012.94 × 40,388.20
  4. Step 4: Simplify right side
    73,922.20x = 4,120,119,023.31
  5. Step 5: Solve for x
    x = 4,120,119,023.31/73,922.20
  6. Step 6: Final answer
    x = 55,735.88

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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.