Home / 81,963.24-122,934.10-25,803.65

Finding the Fourth Proportional to 81,963.24, 122,934.10 and 25,803.65

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Solution

The fourth proportional to 81,963.24, 122,934.10 and 25,803.65 is: 38,702.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,963.24 : 122,934.10 = 25,803.65 : x
  2. Step 2: Convert to fraction form
    81,963.24/122,934.10 = 25,803.65/x
  3. Step 3: Cross multiply
    81,963.24x = 122,934.10 × 25,803.65
  4. Step 4: Simplify right side
    81,963.24x = 3,172,147,745.78
  5. Step 5: Solve for x
    x = 3,172,147,745.78/81,963.24
  6. Step 6: Final answer
    x = 38,702.08

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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.