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Finding the Fourth Proportional to 80,100.36, 120,076.20 and 38,000.22

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Solution

The fourth proportional to 80,100.36, 120,076.20 and 38,000.22 is: 56,965.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,100.36 : 120,076.20 = 38,000.22 : x
  2. Step 2: Convert to fraction form
    80,100.36/120,076.20 = 38,000.22/x
  3. Step 3: Cross multiply
    80,100.36x = 120,076.20 × 38,000.22
  4. Step 4: Simplify right side
    80,100.36x = 4,562,922,016.76
  5. Step 5: Solve for x
    x = 4,562,922,016.76/80,100.36
  6. Step 6: Final answer
    x = 56,965.06

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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.