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Finding the Fourth Proportional to 76,801.71, 115,185.27 and 27,553.71

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Solution

The fourth proportional to 76,801.71, 115,185.27 and 27,553.71 is: 41,324.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,801.71 : 115,185.27 = 27,553.71 : x
  2. Step 2: Convert to fraction form
    76,801.71/115,185.27 = 27,553.71/x
  3. Step 3: Cross multiply
    76,801.71x = 115,185.27 × 27,553.71
  4. Step 4: Simplify right side
    76,801.71x = 3,173,780,949.93
  5. Step 5: Solve for x
    x = 3,173,780,949.93/76,801.71
  6. Step 6: Final answer
    x = 41,324.36

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1.5x scale

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.