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Finding the Fourth Proportional to 69,640.63, 96,106.37 and 39,425.33

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Solution

The fourth proportional to 69,640.63, 96,106.37 and 39,425.33 is: 54,408.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,640.63 : 96,106.37 = 39,425.33 : x
  2. Step 2: Convert to fraction form
    69,640.63/96,106.37 = 39,425.33/x
  3. Step 3: Cross multiply
    69,640.63x = 96,106.37 × 39,425.33
  4. Step 4: Simplify right side
    69,640.63x = 3,789,025,395.49
  5. Step 5: Solve for x
    x = 3,789,025,395.49/69,640.63
  6. Step 6: Final answer
    x = 54,408.26

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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.