Home / 207,821.10-311,731.76-50,049.51

Finding the Fourth Proportional to 207,821.10, 311,731.76 and 50,049.51

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Solution

The fourth proportional to 207,821.10, 311,731.76 and 50,049.51 is: 75,074.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,821.10 : 311,731.76 = 50,049.51 : x
  2. Step 2: Convert to fraction form
    207,821.10/311,731.76 = 50,049.51/x
  3. Step 3: Cross multiply
    207,821.10x = 311,731.76 × 50,049.51
  4. Step 4: Simplify right side
    207,821.10x = 15,602,021,839.44
  5. Step 5: Solve for x
    x = 15,602,021,839.44/207,821.10
  6. Step 6: Final answer
    x = 75,074.29

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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.