Home / 81,936.96-122,953.14-34,549.08

Finding the Fourth Proportional to 81,936.96, 122,953.14 and 34,549.08

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Solution

The fourth proportional to 81,936.96, 122,953.14 and 34,549.08 is: 51,843.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,936.96 : 122,953.14 = 34,549.08 : x
  2. Step 2: Convert to fraction form
    81,936.96/122,953.14 = 34,549.08/x
  3. Step 3: Cross multiply
    81,936.96x = 122,953.14 × 34,549.08
  4. Step 4: Simplify right side
    81,936.96x = 4,247,917,870.11
  5. Step 5: Solve for x
    x = 4,247,917,870.11/81,936.96
  6. Step 6: Final answer
    x = 51,843.73

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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.