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Finding the Fourth Proportional to 80,566.89, 120,850.37 and 30,635.45

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Solution

The fourth proportional to 80,566.89, 120,850.37 and 30,635.45 is: 45,953.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,566.89 : 120,850.37 = 30,635.45 : x
  2. Step 2: Convert to fraction form
    80,566.89/120,850.37 = 30,635.45/x
  3. Step 3: Cross multiply
    80,566.89x = 120,850.37 × 30,635.45
  4. Step 4: Simplify right side
    80,566.89x = 3,702,305,467.62
  5. Step 5: Solve for x
    x = 3,702,305,467.62/80,566.89
  6. Step 6: Final answer
    x = 45,953.19

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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.