Home / 81,634.10-122,498.44-34,245

Finding the Fourth Proportional to 81,634.10, 122,498.44 and 34,245

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Solution

The fourth proportional to 81,634.10, 122,498.44 and 34,245 is: 51,387.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,634.10 : 122,498.44 = 34,245 : x
  2. Step 2: Convert to fraction form
    81,634.10/122,498.44 = 34,245/x
  3. Step 3: Cross multiply
    81,634.10x = 122,498.44 × 34,245
  4. Step 4: Simplify right side
    81,634.10x = 4,194,958,992.19
  5. Step 5: Solve for x
    x = 4,194,958,992.19/81,634.10
  6. Step 6: Final answer
    x = 51,387.34

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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.