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Finding the Fourth Proportional to 62,388.36, 86,105.68 and 39,737.12

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Solution

The fourth proportional to 62,388.36, 86,105.68 and 39,737.12 is: 54,843.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,388.36 : 86,105.68 = 39,737.12 : x
  2. Step 2: Convert to fraction form
    62,388.36/86,105.68 = 39,737.12/x
  3. Step 3: Cross multiply
    62,388.36x = 86,105.68 × 39,737.12
  4. Step 4: Simplify right side
    62,388.36x = 3,421,591,738.84
  5. Step 5: Solve for x
    x = 3,421,591,738.84/62,388.36
  6. Step 6: Final answer
    x = 54,843.43

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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.