Home / 81,175.32-121,762.67-22,010.82

Finding the Fourth Proportional to 81,175.32, 121,762.67 and 22,010.82

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Solution

The fourth proportional to 81,175.32, 121,762.67 and 22,010.82 is: 33,016.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,175.32 : 121,762.67 = 22,010.82 : x
  2. Step 2: Convert to fraction form
    81,175.32/121,762.67 = 22,010.82/x
  3. Step 3: Cross multiply
    81,175.32x = 121,762.67 × 22,010.82
  4. Step 4: Simplify right side
    81,175.32x = 2,680,096,102.04
  5. Step 5: Solve for x
    x = 2,680,096,102.04/81,175.32
  6. Step 6: Final answer
    x = 33,016.15

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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.