Home / 69,721.14-96,214.90-39,512.22

Finding the Fourth Proportional to 69,721.14, 96,214.90 and 39,512.22

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Solution

The fourth proportional to 69,721.14, 96,214.90 and 39,512.22 is: 54,526.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,721.14 : 96,214.90 = 39,512.22 : x
  2. Step 2: Convert to fraction form
    69,721.14/96,214.90 = 39,512.22/x
  3. Step 3: Cross multiply
    69,721.14x = 96,214.90 × 39,512.22
  4. Step 4: Simplify right side
    69,721.14x = 3,801,664,296.08
  5. Step 5: Solve for x
    x = 3,801,664,296.08/69,721.14
  6. Step 6: Final answer
    x = 54,526.71

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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.