Home / 81,788.68-122,708.94-29,197

Finding the Fourth Proportional to 81,788.68, 122,708.94 and 29,197

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Solution

The fourth proportional to 81,788.68, 122,708.94 and 29,197 is: 43,804.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,788.68 : 122,708.94 = 29,197 : x
  2. Step 2: Convert to fraction form
    81,788.68/122,708.94 = 29,197/x
  3. Step 3: Cross multiply
    81,788.68x = 122,708.94 × 29,197
  4. Step 4: Simplify right side
    81,788.68x = 3,582,732,921.18
  5. Step 5: Solve for x
    x = 3,582,732,921.18/81,788.68
  6. Step 6: Final answer
    x = 43,804.75

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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.