Home / 51,215.14-76,769.96-19,616.60

Finding the Fourth Proportional to 51,215.14, 76,769.96 and 19,616.60

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Solution

The fourth proportional to 51,215.14, 76,769.96 and 19,616.60 is: 29,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,215.14 : 76,769.96 = 19,616.60 : x
  2. Step 2: Convert to fraction form
    51,215.14/76,769.96 = 19,616.60/x
  3. Step 3: Cross multiply
    51,215.14x = 76,769.96 × 19,616.60
  4. Step 4: Simplify right side
    51,215.14x = 1,505,965,597.34
  5. Step 5: Solve for x
    x = 1,505,965,597.34/51,215.14
  6. Step 6: Final answer
    x = 29,404.70

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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.