Home / 51,819.54-77,729.31-20,676.66

Finding the Fourth Proportional to 51,819.54, 77,729.31 and 20,676.66

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Solution

The fourth proportional to 51,819.54, 77,729.31 and 20,676.66 is: 31,014.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,819.54 : 77,729.31 = 20,676.66 : x
  2. Step 2: Convert to fraction form
    51,819.54/77,729.31 = 20,676.66/x
  3. Step 3: Cross multiply
    51,819.54x = 77,729.31 × 20,676.66
  4. Step 4: Simplify right side
    51,819.54x = 1,607,182,514.90
  5. Step 5: Solve for x
    x = 1,607,182,514.90/51,819.54
  6. Step 6: Final answer
    x = 31,014.99

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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.