Home / 81,675.75-122,522.09-22,511.43

Finding the Fourth Proportional to 81,675.75, 122,522.09 and 22,511.43

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Solution

The fourth proportional to 81,675.75, 122,522.09 and 22,511.43 is: 33,769.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,675.75 : 122,522.09 = 22,511.43 : x
  2. Step 2: Convert to fraction form
    81,675.75/122,522.09 = 22,511.43/x
  3. Step 3: Cross multiply
    81,675.75x = 122,522.09 × 22,511.43
  4. Step 4: Simplify right side
    81,675.75x = 2,758,146,727.32
  5. Step 5: Solve for x
    x = 2,758,146,727.32/81,675.75
  6. Step 6: Final answer
    x = 33,769.47

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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.