Home / 51,310.59-76,958.46-13,872.84

Finding the Fourth Proportional to 51,310.59, 76,958.46 and 13,872.84

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Solution

The fourth proportional to 51,310.59, 76,958.46 and 13,872.84 is: 20,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,310.59 : 76,958.46 = 13,872.84 : x
  2. Step 2: Convert to fraction form
    51,310.59/76,958.46 = 13,872.84/x
  3. Step 3: Cross multiply
    51,310.59x = 76,958.46 × 13,872.84
  4. Step 4: Simplify right side
    51,310.59x = 1,067,632,402.23
  5. Step 5: Solve for x
    x = 1,067,632,402.23/51,310.59
  6. Step 6: Final answer
    x = 20,807.25

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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.