Home / 51,384.20-77,115.25-21,822.79

Finding the Fourth Proportional to 51,384.20, 77,115.25 and 21,822.79

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Solution

The fourth proportional to 51,384.20, 77,115.25 and 21,822.79 is: 32,750.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,384.20 : 77,115.25 = 21,822.79 : x
  2. Step 2: Convert to fraction form
    51,384.20/77,115.25 = 21,822.79/x
  3. Step 3: Cross multiply
    51,384.20x = 77,115.25 × 21,822.79
  4. Step 4: Simplify right side
    51,384.20x = 1,682,869,906.55
  5. Step 5: Solve for x
    x = 1,682,869,906.55/51,384.20
  6. Step 6: Final answer
    x = 32,750.73

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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.