Home / 81,246.96-121,870.26-22,091.22

Finding the Fourth Proportional to 81,246.96, 121,870.26 and 22,091.22

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Solution

The fourth proportional to 81,246.96, 121,870.26 and 22,091.22 is: 33,136.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,246.96 : 121,870.26 = 22,091.22 : x
  2. Step 2: Convert to fraction form
    81,246.96/121,870.26 = 22,091.22/x
  3. Step 3: Cross multiply
    81,246.96x = 121,870.26 × 22,091.22
  4. Step 4: Simplify right side
    81,246.96x = 2,692,262,725.12
  5. Step 5: Solve for x
    x = 2,692,262,725.12/81,246.96
  6. Step 6: Final answer
    x = 33,136.78

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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.