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Finding the Fourth Proportional to 80,560.81, 120,841.27 and 30,629.37

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Solution

The fourth proportional to 80,560.81, 120,841.27 and 30,629.37 is: 45,944.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,560.81 : 120,841.27 = 30,629.37 : x
  2. Step 2: Convert to fraction form
    80,560.81/120,841.27 = 30,629.37/x
  3. Step 3: Cross multiply
    80,560.81x = 120,841.27 × 30,629.37
  4. Step 4: Simplify right side
    80,560.81x = 3,701,292,346.68
  5. Step 5: Solve for x
    x = 3,701,292,346.68/80,560.81
  6. Step 6: Final answer
    x = 45,944.08

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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.