Home / 89,621.22-123,672.34-49,333.44

Finding the Fourth Proportional to 89,621.22, 123,672.34 and 49,333.44

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Solution

The fourth proportional to 89,621.22, 123,672.34 and 49,333.44 is: 68,077.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,621.22 : 123,672.34 = 49,333.44 : x
  2. Step 2: Convert to fraction form
    89,621.22/123,672.34 = 49,333.44/x
  3. Step 3: Cross multiply
    89,621.22x = 123,672.34 × 49,333.44
  4. Step 4: Simplify right side
    89,621.22x = 6,101,181,965.05
  5. Step 5: Solve for x
    x = 6,101,181,965.05/89,621.22
  6. Step 6: Final answer
    x = 68,077.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.