Home / 51,245.09-76,891.38-19,644.60

Finding the Fourth Proportional to 51,245.09, 76,891.38 and 19,644.60

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Solution

The fourth proportional to 51,245.09, 76,891.38 and 19,644.60 is: 29,475.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,245.09 : 76,891.38 = 19,644.60 : x
  2. Step 2: Convert to fraction form
    51,245.09/76,891.38 = 19,644.60/x
  3. Step 3: Cross multiply
    51,245.09x = 76,891.38 × 19,644.60
  4. Step 4: Simplify right side
    51,245.09x = 1,510,500,019.09
  5. Step 5: Solve for x
    x = 1,510,500,019.09/51,245.09
  6. Step 6: Final answer
    x = 29,475.99

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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.