Home / 89,805.42-123,936.99-49,519.05

Finding the Fourth Proportional to 89,805.42, 123,936.99 and 49,519.05

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Solution

The fourth proportional to 89,805.42, 123,936.99 and 49,519.05 is: 68,339.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,805.42 : 123,936.99 = 49,519.05 : x
  2. Step 2: Convert to fraction form
    89,805.42/123,936.99 = 49,519.05/x
  3. Step 3: Cross multiply
    89,805.42x = 123,936.99 × 49,519.05
  4. Step 4: Simplify right side
    89,805.42x = 6,137,242,004.66
  5. Step 5: Solve for x
    x = 6,137,242,004.66/89,805.42
  6. Step 6: Final answer
    x = 68,339.33

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1.5x scale

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.