Home / 73,961.76-102,067.28-40,427.76

Finding the Fourth Proportional to 73,961.76, 102,067.28 and 40,427.76

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Solution

The fourth proportional to 73,961.76, 102,067.28 and 40,427.76 is: 55,790.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,961.76 : 102,067.28 = 40,427.76 : x
  2. Step 2: Convert to fraction form
    73,961.76/102,067.28 = 40,427.76/x
  3. Step 3: Cross multiply
    73,961.76x = 102,067.28 × 40,427.76
  4. Step 4: Simplify right side
    73,961.76x = 4,126,351,499.69
  5. Step 5: Solve for x
    x = 4,126,351,499.69/73,961.76
  6. Step 6: Final answer
    x = 55,790.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.