Home / 89,212.25-123,112.91-49,468.25

Finding the Fourth Proportional to 89,212.25, 123,112.91 and 49,468.25

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Solution

The fourth proportional to 89,212.25, 123,112.91 and 49,468.25 is: 68,266.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,212.25 : 123,112.91 = 49,468.25 : x
  2. Step 2: Convert to fraction form
    89,212.25/123,112.91 = 49,468.25/x
  3. Step 3: Cross multiply
    89,212.25x = 123,112.91 × 49,468.25
  4. Step 4: Simplify right side
    89,212.25x = 6,090,180,210.11
  5. Step 5: Solve for x
    x = 6,090,180,210.11/89,212.25
  6. Step 6: Final answer
    x = 68,266.19

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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.