Home / 91,137.12-136,725.92-27,966

Finding the Fourth Proportional to 91,137.12, 136,725.92 and 27,966

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Solution

The fourth proportional to 91,137.12, 136,725.92 and 27,966 is: 41,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,137.12 : 136,725.92 = 27,966 : x
  2. Step 2: Convert to fraction form
    91,137.12/136,725.92 = 27,966/x
  3. Step 3: Cross multiply
    91,137.12x = 136,725.92 × 27,966
  4. Step 4: Simplify right side
    91,137.12x = 3,823,677,078.72
  5. Step 5: Solve for x
    x = 3,823,677,078.72/91,137.12
  6. Step 6: Final answer
    x = 41,955.21

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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.