Home / 81,254.11-121,922.18-36,852.55

Finding the Fourth Proportional to 81,254.11, 121,922.18 and 36,852.55

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Solution

The fourth proportional to 81,254.11, 121,922.18 and 36,852.55 is: 55,297.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,254.11 : 121,922.18 = 36,852.55 : x
  2. Step 2: Convert to fraction form
    81,254.11/121,922.18 = 36,852.55/x
  3. Step 3: Cross multiply
    81,254.11x = 121,922.18 × 36,852.55
  4. Step 4: Simplify right side
    81,254.11x = 4,493,143,234.56
  5. Step 5: Solve for x
    x = 4,493,143,234.56/81,254.11
  6. Step 6: Final answer
    x = 55,297.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.