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Finding the Fourth Proportional to 80,173.54, 120,261.12 and 35,802.55

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Solution

The fourth proportional to 80,173.54, 120,261.12 and 35,802.55 is: 53,704.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,173.54 : 120,261.12 = 35,802.55 : x
  2. Step 2: Convert to fraction form
    80,173.54/120,261.12 = 35,802.55/x
  3. Step 3: Cross multiply
    80,173.54x = 120,261.12 × 35,802.55
  4. Step 4: Simplify right side
    80,173.54x = 4,305,654,761.86
  5. Step 5: Solve for x
    x = 4,305,654,761.86/80,173.54
  6. Step 6: Final answer
    x = 53,704.19

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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.