Home / 81,502.84-122,223.55-34,121.20

Finding the Fourth Proportional to 81,502.84, 122,223.55 and 34,121.20

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Solution

The fourth proportional to 81,502.84, 122,223.55 and 34,121.20 is: 51,168.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,502.84 : 122,223.55 = 34,121.20 : x
  2. Step 2: Convert to fraction form
    81,502.84/122,223.55 = 34,121.20/x
  3. Step 3: Cross multiply
    81,502.84x = 122,223.55 × 34,121.20
  4. Step 4: Simplify right side
    81,502.84x = 4,170,414,096.54
  5. Step 5: Solve for x
    x = 4,170,414,096.54/81,502.84
  6. Step 6: Final answer
    x = 51,168.94

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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.