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Finding the Fourth Proportional to 80,335.60, 110,885.15 and 50,102.75

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Solution

The fourth proportional to 80,335.60, 110,885.15 and 50,102.75 is: 69,155.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,335.60 : 110,885.15 = 50,102.75 : x
  2. Step 2: Convert to fraction form
    80,335.60/110,885.15 = 50,102.75/x
  3. Step 3: Cross multiply
    80,335.60x = 110,885.15 × 50,102.75
  4. Step 4: Simplify right side
    80,335.60x = 5,555,651,351.63
  5. Step 5: Solve for x
    x = 5,555,651,351.63/80,335.60
  6. Step 6: Final answer
    x = 69,155.54

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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.