Home / 89,723.72-123,818.16-49,436.36

Finding the Fourth Proportional to 89,723.72, 123,818.16 and 49,436.36

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Solution

The fourth proportional to 89,723.72, 123,818.16 and 49,436.36 is: 68,221.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,723.72 : 123,818.16 = 49,436.36 : x
  2. Step 2: Convert to fraction form
    89,723.72/123,818.16 = 49,436.36/x
  3. Step 3: Cross multiply
    89,723.72x = 123,818.16 × 49,436.36
  4. Step 4: Simplify right side
    89,723.72x = 6,121,119,132.30
  5. Step 5: Solve for x
    x = 6,121,119,132.30/89,723.72
  6. Step 6: Final answer
    x = 68,221.86

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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.