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Finding the Fourth Proportional to 80,015.45, 120,055.44 and 35,611.83

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Solution

The fourth proportional to 80,015.45, 120,055.44 and 35,611.83 is: 53,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,015.45 : 120,055.44 = 35,611.83 : x
  2. Step 2: Convert to fraction form
    80,015.45/120,055.44 = 35,611.83/x
  3. Step 3: Cross multiply
    80,015.45x = 120,055.44 × 35,611.83
  4. Step 4: Simplify right side
    80,015.45x = 4,275,393,319.58
  5. Step 5: Solve for x
    x = 4,275,393,319.58/80,015.45
  6. Step 6: Final answer
    x = 53,432.10

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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.