Home / 81,998.46-122,971.77-26,581.50

Finding the Fourth Proportional to 81,998.46, 122,971.77 and 26,581.50

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Solution

The fourth proportional to 81,998.46, 122,971.77 and 26,581.50 is: 39,863.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,998.46 : 122,971.77 = 26,581.50 : x
  2. Step 2: Convert to fraction form
    81,998.46/122,971.77 = 26,581.50/x
  3. Step 3: Cross multiply
    81,998.46x = 122,971.77 × 26,581.50
  4. Step 4: Simplify right side
    81,998.46x = 3,268,774,104.26
  5. Step 5: Solve for x
    x = 3,268,774,104.26/81,998.46
  6. Step 6: Final answer
    x = 39,863.85

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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.