Home / 84,942.69-127,414.80-25,778.37

Finding the Fourth Proportional to 84,942.69, 127,414.80 and 25,778.37

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Solution

The fourth proportional to 84,942.69, 127,414.80 and 25,778.37 is: 38,667.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,942.69 : 127,414.80 = 25,778.37 : x
  2. Step 2: Convert to fraction form
    84,942.69/127,414.80 = 25,778.37/x
  3. Step 3: Cross multiply
    84,942.69x = 127,414.80 × 25,778.37
  4. Step 4: Simplify right side
    84,942.69x = 3,284,545,857.88
  5. Step 5: Solve for x
    x = 3,284,545,857.88/84,942.69
  6. Step 6: Final answer
    x = 38,667.79

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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.