Home / 81,018.33-111,774.09-50,750.97

Finding the Fourth Proportional to 81,018.33, 111,774.09 and 50,750.97

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Solution

The fourth proportional to 81,018.33, 111,774.09 and 50,750.97 is: 70,016.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,018.33 : 111,774.09 = 50,750.97 : x
  2. Step 2: Convert to fraction form
    81,018.33/111,774.09 = 50,750.97/x
  3. Step 3: Cross multiply
    81,018.33x = 111,774.09 × 50,750.97
  4. Step 4: Simplify right side
    81,018.33x = 5,672,643,488.37
  5. Step 5: Solve for x
    x = 5,672,643,488.37/81,018.33
  6. Step 6: Final answer
    x = 70,016.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.