Home / 71,185.20-106,703.60-26,781.36

Finding the Fourth Proportional to 71,185.20, 106,703.60 and 26,781.36

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Solution

The fourth proportional to 71,185.20, 106,703.60 and 26,781.36 is: 40,144.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,185.20 : 106,703.60 = 26,781.36 : x
  2. Step 2: Convert to fraction form
    71,185.20/106,703.60 = 26,781.36/x
  3. Step 3: Cross multiply
    71,185.20x = 106,703.60 × 26,781.36
  4. Step 4: Simplify right side
    71,185.20x = 2,857,667,524.90
  5. Step 5: Solve for x
    x = 2,857,667,524.90/71,185.20
  6. Step 6: Final answer
    x = 40,144.12

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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.