Home / 51,315.20-76,939.62-33,731.72

Finding the Fourth Proportional to 51,315.20, 76,939.62 and 33,731.72

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Solution

The fourth proportional to 51,315.20, 76,939.62 and 33,731.72 is: 50,575.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,315.20 : 76,939.62 = 33,731.72 : x
  2. Step 2: Convert to fraction form
    51,315.20/76,939.62 = 33,731.72/x
  3. Step 3: Cross multiply
    51,315.20x = 76,939.62 × 33,731.72
  4. Step 4: Simplify right side
    51,315.20x = 2,595,305,718.75
  5. Step 5: Solve for x
    x = 2,595,305,718.75/51,315.20
  6. Step 6: Final answer
    x = 50,575.77

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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.