Home / 70,272.78-105,240.26-40,195.86

Finding the Fourth Proportional to 70,272.78, 105,240.26 and 40,195.86

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Solution

The fourth proportional to 70,272.78, 105,240.26 and 40,195.86 is: 60,197.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,272.78 : 105,240.26 = 40,195.86 : x
  2. Step 2: Convert to fraction form
    70,272.78/105,240.26 = 40,195.86/x
  3. Step 3: Cross multiply
    70,272.78x = 105,240.26 × 40,195.86
  4. Step 4: Simplify right side
    70,272.78x = 4,230,222,556.34
  5. Step 5: Solve for x
    x = 4,230,222,556.34/70,272.78
  6. Step 6: Final answer
    x = 60,197.17

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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.