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Finding the Fourth Proportional to 62,600, 86,388 and 36,119.36

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Solution

The fourth proportional to 62,600, 86,388 and 36,119.36 is: 49,844.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,600 : 86,388 = 36,119.36 : x
  2. Step 2: Convert to fraction form
    62,600/86,388 = 36,119.36/x
  3. Step 3: Cross multiply
    62,600x = 86,388 × 36,119.36
  4. Step 4: Simplify right side
    62,600x = 3,120,279,271.68
  5. Step 5: Solve for x
    x = 3,120,279,271.68/62,600
  6. Step 6: Final answer
    x = 49,844.72

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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.