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Finding the Fourth Proportional to 80,147.76, 120,229.64 and 27,550.32

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Solution

The fourth proportional to 80,147.76, 120,229.64 and 27,550.32 is: 41,328.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,147.76 : 120,229.64 = 27,550.32 : x
  2. Step 2: Convert to fraction form
    80,147.76/120,229.64 = 27,550.32/x
  3. Step 3: Cross multiply
    80,147.76x = 120,229.64 × 27,550.32
  4. Step 4: Simplify right side
    80,147.76x = 3,312,365,055.48
  5. Step 5: Solve for x
    x = 3,312,365,055.48/80,147.76
  6. Step 6: Final answer
    x = 41,328.23

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1.5x scale

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.