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Finding the Fourth Proportional to 80,784.68, 121,201.72 and 41,369.68

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Solution

The fourth proportional to 80,784.68, 121,201.72 and 41,369.68 is: 62,067.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,784.68 : 121,201.72 = 41,369.68 : x
  2. Step 2: Convert to fraction form
    80,784.68/121,201.72 = 41,369.68/x
  3. Step 3: Cross multiply
    80,784.68x = 121,201.72 × 41,369.68
  4. Step 4: Simplify right side
    80,784.68x = 5,014,076,371.85
  5. Step 5: Solve for x
    x = 5,014,076,371.85/80,784.68
  6. Step 6: Final answer
    x = 62,067.17

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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.