Home / 69,856.97-104,786.42-19,937.05

Finding the Fourth Proportional to 69,856.97, 104,786.42 and 19,937.05

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Solution

The fourth proportional to 69,856.97, 104,786.42 and 19,937.05 is: 29,905.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,856.97 : 104,786.42 = 19,937.05 : x
  2. Step 2: Convert to fraction form
    69,856.97/104,786.42 = 19,937.05/x
  3. Step 3: Cross multiply
    69,856.97x = 104,786.42 × 19,937.05
  4. Step 4: Simplify right side
    69,856.97x = 2,089,131,733.21
  5. Step 5: Solve for x
    x = 2,089,131,733.21/69,856.97
  6. Step 6: Final answer
    x = 29,905.85

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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.