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Finding the Fourth Proportional to 80,078.08, 110,505.60 and 43,778.08

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Solution

The fourth proportional to 80,078.08, 110,505.60 and 43,778.08 is: 60,412.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,078.08 : 110,505.60 = 43,778.08 : x
  2. Step 2: Convert to fraction form
    80,078.08/110,505.60 = 43,778.08/x
  3. Step 3: Cross multiply
    80,078.08x = 110,505.60 × 43,778.08
  4. Step 4: Simplify right side
    80,078.08x = 4,837,722,997.25
  5. Step 5: Solve for x
    x = 4,837,722,997.25/80,078.08
  6. Step 6: Final answer
    x = 60,412.57

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1.5x scale

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.