Home / 89,161.80-123,055.87-55,181.24

Finding the Fourth Proportional to 89,161.80, 123,055.87 and 55,181.24

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Solution

The fourth proportional to 89,161.80, 123,055.87 and 55,181.24 is: 76,157.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,161.80 : 123,055.87 = 55,181.24 : x
  2. Step 2: Convert to fraction form
    89,161.80/123,055.87 = 55,181.24/x
  3. Step 3: Cross multiply
    89,161.80x = 123,055.87 × 55,181.24
  4. Step 4: Simplify right side
    89,161.80x = 6,790,375,495.88
  5. Step 5: Solve for x
    x = 6,790,375,495.88/89,161.80
  6. Step 6: Final answer
    x = 76,157.90

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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.