Home / 89,505.77-123,513.73-49,221.23

Finding the Fourth Proportional to 89,505.77, 123,513.73 and 49,221.23

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Solution

The fourth proportional to 89,505.77, 123,513.73 and 49,221.23 is: 67,922.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,505.77 : 123,513.73 = 49,221.23 : x
  2. Step 2: Convert to fraction form
    89,505.77/123,513.73 = 49,221.23/x
  3. Step 3: Cross multiply
    89,505.77x = 123,513.73 × 49,221.23
  4. Step 4: Simplify right side
    89,505.77x = 6,079,496,971.87
  5. Step 5: Solve for x
    x = 6,079,496,971.87/89,505.77
  6. Step 6: Final answer
    x = 67,922.97

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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.