Home / 52,638.72-78,944.40-15,190.44

Finding the Fourth Proportional to 52,638.72, 78,944.40 and 15,190.44

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Solution

The fourth proportional to 52,638.72, 78,944.40 and 15,190.44 is: 22,781.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,638.72 : 78,944.40 = 15,190.44 : x
  2. Step 2: Convert to fraction form
    52,638.72/78,944.40 = 15,190.44/x
  3. Step 3: Cross multiply
    52,638.72x = 78,944.40 × 15,190.44
  4. Step 4: Simplify right side
    52,638.72x = 1,199,200,171.54
  5. Step 5: Solve for x
    x = 1,199,200,171.54/52,638.72
  6. Step 6: Final answer
    x = 22,781.71

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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.