Home / 51,793.03-77,678.31-18,515.41

Finding the Fourth Proportional to 51,793.03, 77,678.31 and 18,515.41

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Solution

The fourth proportional to 51,793.03, 77,678.31 and 18,515.41 is: 27,769.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,793.03 : 77,678.31 = 18,515.41 : x
  2. Step 2: Convert to fraction form
    51,793.03/77,678.31 = 18,515.41/x
  3. Step 3: Cross multiply
    51,793.03x = 77,678.31 × 18,515.41
  4. Step 4: Simplify right side
    51,793.03x = 1,438,245,757.76
  5. Step 5: Solve for x
    x = 1,438,245,757.76/51,793.03
  6. Step 6: Final answer
    x = 27,769.10

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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.