Home / 89,620.21-123,670.96-49,332.43

Finding the Fourth Proportional to 89,620.21, 123,670.96 and 49,332.43

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Solution

The fourth proportional to 89,620.21, 123,670.96 and 49,332.43 is: 68,076.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,620.21 : 123,670.96 = 49,332.43 : x
  2. Step 2: Convert to fraction form
    89,620.21/123,670.96 = 49,332.43/x
  3. Step 3: Cross multiply
    89,620.21x = 123,670.96 × 49,332.43
  4. Step 4: Simplify right side
    89,620.21x = 6,100,988,977.23
  5. Step 5: Solve for x
    x = 6,100,988,977.23/89,620.21
  6. Step 6: Final answer
    x = 68,076.04

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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.