Home / 51,190.68-76,786-20,004.08

Finding the Fourth Proportional to 51,190.68, 76,786 and 20,004.08

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Solution

The fourth proportional to 51,190.68, 76,786 and 20,004.08 is: 30,006.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,190.68 : 76,786 = 20,004.08 : x
  2. Step 2: Convert to fraction form
    51,190.68/76,786 = 20,004.08/x
  3. Step 3: Cross multiply
    51,190.68x = 76,786 × 20,004.08
  4. Step 4: Simplify right side
    51,190.68x = 1,536,033,286.88
  5. Step 5: Solve for x
    x = 1,536,033,286.88/51,190.68
  6. Step 6: Final answer
    x = 30,006.11

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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.