Home / 73,115.10-109,650.30-30,994.38

Finding the Fourth Proportional to 73,115.10, 109,650.30 and 30,994.38

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Solution

The fourth proportional to 73,115.10, 109,650.30 and 30,994.38 is: 46,482.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,115.10 : 109,650.30 = 30,994.38 : x
  2. Step 2: Convert to fraction form
    73,115.10/109,650.30 = 30,994.38/x
  3. Step 3: Cross multiply
    73,115.10x = 109,650.30 × 30,994.38
  4. Step 4: Simplify right side
    73,115.10x = 3,398,542,517.06
  5. Step 5: Solve for x
    x = 3,398,542,517.06/73,115.10
  6. Step 6: Final answer
    x = 46,482.09

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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.