Home / 68,233.60-102,365.97-20,855.43

Finding the Fourth Proportional to 68,233.60, 102,365.97 and 20,855.43

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Solution

The fourth proportional to 68,233.60, 102,365.97 and 20,855.43 is: 31,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,233.60 : 102,365.97 = 20,855.43 : x
  2. Step 2: Convert to fraction form
    68,233.60/102,365.97 = 20,855.43/x
  3. Step 3: Cross multiply
    68,233.60x = 102,365.97 × 20,855.43
  4. Step 4: Simplify right side
    68,233.60x = 2,134,886,360.82
  5. Step 5: Solve for x
    x = 2,134,886,360.82/68,233.60
  6. Step 6: Final answer
    x = 31,287.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.