Home / 81,900.37-122,849.80-22,736.05

Finding the Fourth Proportional to 81,900.37, 122,849.80 and 22,736.05

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Solution

The fourth proportional to 81,900.37, 122,849.80 and 22,736.05 is: 34,103.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,900.37 : 122,849.80 = 22,736.05 : x
  2. Step 2: Convert to fraction form
    81,900.37/122,849.80 = 22,736.05/x
  3. Step 3: Cross multiply
    81,900.37x = 122,849.80 × 22,736.05
  4. Step 4: Simplify right side
    81,900.37x = 2,793,119,195.29
  5. Step 5: Solve for x
    x = 2,793,119,195.29/81,900.37
  6. Step 6: Final answer
    x = 34,103.87

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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.