Home / 80,410.48-120,599.32-30,473.38

Finding the Fourth Proportional to 80,410.48, 120,599.32 and 30,473.38

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Solution

The fourth proportional to 80,410.48, 120,599.32 and 30,473.38 is: 45,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,410.48 : 120,599.32 = 30,473.38 : x
  2. Step 2: Convert to fraction form
    80,410.48/120,599.32 = 30,473.38/x
  3. Step 3: Cross multiply
    80,410.48x = 120,599.32 × 30,473.38
  4. Step 4: Simplify right side
    80,410.48x = 3,675,068,906.10
  5. Step 5: Solve for x
    x = 3,675,068,906.10/80,410.48
  6. Step 6: Final answer
    x = 45,703.85

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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.