Home / 81,400.84-122,100.42-22,236.52

Finding the Fourth Proportional to 81,400.84, 122,100.42 and 22,236.52

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Solution

The fourth proportional to 81,400.84, 122,100.42 and 22,236.52 is: 33,354.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,400.84 : 122,100.42 = 22,236.52 : x
  2. Step 2: Convert to fraction form
    81,400.84/122,100.42 = 22,236.52/x
  3. Step 3: Cross multiply
    81,400.84x = 122,100.42 × 22,236.52
  4. Step 4: Simplify right side
    81,400.84x = 2,715,088,431.34
  5. Step 5: Solve for x
    x = 2,715,088,431.34/81,400.84
  6. Step 6: Final answer
    x = 33,354.55

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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.