Home / 51,815.20-77,719.43-13,863.96

Finding the Fourth Proportional to 51,815.20, 77,719.43 and 13,863.96

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Solution

The fourth proportional to 51,815.20, 77,719.43 and 13,863.96 is: 20,795.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,815.20 : 77,719.43 = 13,863.96 : x
  2. Step 2: Convert to fraction form
    51,815.20/77,719.43 = 13,863.96/x
  3. Step 3: Cross multiply
    51,815.20x = 77,719.43 × 13,863.96
  4. Step 4: Simplify right side
    51,815.20x = 1,077,498,610.83
  5. Step 5: Solve for x
    x = 1,077,498,610.83/51,815.20
  6. Step 6: Final answer
    x = 20,795.03

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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.