Home / 51,103.97-76,659.80-13,663.22

Finding the Fourth Proportional to 51,103.97, 76,659.80 and 13,663.22

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Solution

The fourth proportional to 51,103.97, 76,659.80 and 13,663.22 is: 20,495.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,103.97 : 76,659.80 = 13,663.22 : x
  2. Step 2: Convert to fraction form
    51,103.97/76,659.80 = 13,663.22/x
  3. Step 3: Cross multiply
    51,103.97x = 76,659.80 × 13,663.22
  4. Step 4: Simplify right side
    51,103.97x = 1,047,419,712.56
  5. Step 5: Solve for x
    x = 1,047,419,712.56/51,103.97
  6. Step 6: Final answer
    x = 20,495.86

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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.