Home / 81,390.11-122,104.10-25,227.24

Finding the Fourth Proportional to 81,390.11, 122,104.10 and 25,227.24

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Solution

The fourth proportional to 81,390.11, 122,104.10 and 25,227.24 is: 37,846.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,390.11 : 122,104.10 = 25,227.24 : x
  2. Step 2: Convert to fraction form
    81,390.11/122,104.10 = 25,227.24/x
  3. Step 3: Cross multiply
    81,390.11x = 122,104.10 × 25,227.24
  4. Step 4: Simplify right side
    81,390.11x = 3,080,349,435.68
  5. Step 5: Solve for x
    x = 3,080,349,435.68/81,390.11
  6. Step 6: Final answer
    x = 37,846.73

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1.5x scale

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.