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Finding the Fourth Proportional to 99,995.76, 150,067.48 and 47,405.44

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Solution

The fourth proportional to 99,995.76, 150,067.48 and 47,405.44 is: 71,143.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,995.76 : 150,067.48 = 47,405.44 : x
  2. Step 2: Convert to fraction form
    99,995.76/150,067.48 = 47,405.44/x
  3. Step 3: Cross multiply
    99,995.76x = 150,067.48 × 47,405.44
  4. Step 4: Simplify right side
    99,995.76x = 7,114,014,919.09
  5. Step 5: Solve for x
    x = 7,114,014,919.09/99,995.76
  6. Step 6: Final answer
    x = 71,143.17

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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.