Home / 81,399.86-122,118.75-25,237.04

Finding the Fourth Proportional to 81,399.86, 122,118.75 and 25,237.04

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Solution

The fourth proportional to 81,399.86, 122,118.75 and 25,237.04 is: 37,861.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,399.86 : 122,118.75 = 25,237.04 : x
  2. Step 2: Convert to fraction form
    81,399.86/122,118.75 = 25,237.04/x
  3. Step 3: Cross multiply
    81,399.86x = 122,118.75 × 25,237.04
  4. Step 4: Simplify right side
    81,399.86x = 3,081,915,778.50
  5. Step 5: Solve for x
    x = 3,081,915,778.50/81,399.86
  6. Step 6: Final answer
    x = 37,861.44

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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.