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Finding the Fourth Proportional to 55,279.75, 82,932.59 and 18,343.75

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Solution

The fourth proportional to 55,279.75, 82,932.59 and 18,343.75 is: 27,519.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,279.75 : 82,932.59 = 18,343.75 : x
  2. Step 2: Convert to fraction form
    55,279.75/82,932.59 = 18,343.75/x
  3. Step 3: Cross multiply
    55,279.75x = 82,932.59 × 18,343.75
  4. Step 4: Simplify right side
    55,279.75x = 1,521,294,697.81
  5. Step 5: Solve for x
    x = 1,521,294,697.81/55,279.75
  6. Step 6: Final answer
    x = 27,519.93

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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.