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Finding the Fourth Proportional to 80,367.81, 120,551.71 and 27,055.33

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Solution

The fourth proportional to 80,367.81, 120,551.71 and 27,055.33 is: 40,582.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,367.81 : 120,551.71 = 27,055.33 : x
  2. Step 2: Convert to fraction form
    80,367.81/120,551.71 = 27,055.33/x
  3. Step 3: Cross multiply
    80,367.81x = 120,551.71 × 27,055.33
  4. Step 4: Simplify right side
    80,367.81x = 3,261,565,822.99
  5. Step 5: Solve for x
    x = 3,261,565,822.99/80,367.81
  6. Step 6: Final answer
    x = 40,582.99

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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.