Home / 51,222.78-76,834.20-14,286.78

Finding the Fourth Proportional to 51,222.78, 76,834.20 and 14,286.78

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Solution

The fourth proportional to 51,222.78, 76,834.20 and 14,286.78 is: 21,430.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,222.78 : 76,834.20 = 14,286.78 : x
  2. Step 2: Convert to fraction form
    51,222.78/76,834.20 = 14,286.78/x
  3. Step 3: Cross multiply
    51,222.78x = 76,834.20 × 14,286.78
  4. Step 4: Simplify right side
    51,222.78x = 1,097,713,311.88
  5. Step 5: Solve for x
    x = 1,097,713,311.88/51,222.78
  6. Step 6: Final answer
    x = 21,430.18

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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.