Home / 66,389.44-91,616.25-36,174.97

Finding the Fourth Proportional to 66,389.44, 91,616.25 and 36,174.97

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Solution

The fourth proportional to 66,389.44, 91,616.25 and 36,174.97 is: 49,920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,389.44 : 91,616.25 = 36,174.97 : x
  2. Step 2: Convert to fraction form
    66,389.44/91,616.25 = 36,174.97/x
  3. Step 3: Cross multiply
    66,389.44x = 91,616.25 × 36,174.97
  4. Step 4: Simplify right side
    66,389.44x = 3,314,215,095.26
  5. Step 5: Solve for x
    x = 3,314,215,095.26/66,389.44
  6. Step 6: Final answer
    x = 49,920.82

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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.