Home / 51,309.78-76,961.56-15,771.42

Finding the Fourth Proportional to 51,309.78, 76,961.56 and 15,771.42

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Solution

The fourth proportional to 51,309.78, 76,961.56 and 15,771.42 is: 23,656.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,309.78 : 76,961.56 = 15,771.42 : x
  2. Step 2: Convert to fraction form
    51,309.78/76,961.56 = 15,771.42/x
  3. Step 3: Cross multiply
    51,309.78x = 76,961.56 × 15,771.42
  4. Step 4: Simplify right side
    51,309.78x = 1,213,793,086.62
  5. Step 5: Solve for x
    x = 1,213,793,086.62/51,309.78
  6. Step 6: Final answer
    x = 23,656.17

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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.