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Finding the Fourth Proportional to 52,806, 79,147.56 and 21,603.44

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Solution

The fourth proportional to 52,806, 79,147.56 and 21,603.44 is: 32,380.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,806 : 79,147.56 = 21,603.44 : x
  2. Step 2: Convert to fraction form
    52,806/79,147.56 = 21,603.44/x
  3. Step 3: Cross multiply
    52,806x = 79,147.56 × 21,603.44
  4. Step 4: Simplify right side
    52,806x = 1,709,859,563.61
  5. Step 5: Solve for x
    x = 1,709,859,563.61/52,806
  6. Step 6: Final answer
    x = 32,380.02

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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.