Home / 52,128.75-78,207.53-15,192.75

Finding the Fourth Proportional to 52,128.75, 78,207.53 and 15,192.75

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Solution

The fourth proportional to 52,128.75, 78,207.53 and 15,192.75 is: 22,793.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,128.75 : 78,207.53 = 15,192.75 : x
  2. Step 2: Convert to fraction form
    52,128.75/78,207.53 = 15,192.75/x
  3. Step 3: Cross multiply
    52,128.75x = 78,207.53 × 15,192.75
  4. Step 4: Simplify right side
    52,128.75x = 1,188,187,375.44
  5. Step 5: Solve for x
    x = 1,188,187,375.44/52,128.75
  6. Step 6: Final answer
    x = 22,793.32

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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.