Home / 81,504.84-122,226.54-34,123.20

Finding the Fourth Proportional to 81,504.84, 122,226.54 and 34,123.20

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Solution

The fourth proportional to 81,504.84, 122,226.54 and 34,123.20 is: 51,171.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,504.84 : 122,226.54 = 34,123.20 : x
  2. Step 2: Convert to fraction form
    81,504.84/122,226.54 = 34,123.20/x
  3. Step 3: Cross multiply
    81,504.84x = 122,226.54 × 34,123.20
  4. Step 4: Simplify right side
    81,504.84x = 4,170,760,669.73
  5. Step 5: Solve for x
    x = 4,170,760,669.73/81,504.84
  6. Step 6: Final answer
    x = 51,171.94

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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.