Home / 51,257.70-76,863.42-21,660.30

Finding the Fourth Proportional to 51,257.70, 76,863.42 and 21,660.30

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Solution

The fourth proportional to 51,257.70, 76,863.42 and 21,660.30 is: 32,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,257.70 : 76,863.42 = 21,660.30 : x
  2. Step 2: Convert to fraction form
    51,257.70/76,863.42 = 21,660.30/x
  3. Step 3: Cross multiply
    51,257.70x = 76,863.42 × 21,660.30
  4. Step 4: Simplify right side
    51,257.70x = 1,664,884,736.23
  5. Step 5: Solve for x
    x = 1,664,884,736.23/51,257.70
  6. Step 6: Final answer
    x = 32,480.68

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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.