Home / 40,418.20-60,627.30-31,961.80

Finding the Fourth Proportional to 40,418.20, 60,627.30 and 31,961.80

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Solution

The fourth proportional to 40,418.20, 60,627.30 and 31,961.80 is: 47,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,418.20 : 60,627.30 = 31,961.80 : x
  2. Step 2: Convert to fraction form
    40,418.20/60,627.30 = 31,961.80/x
  3. Step 3: Cross multiply
    40,418.20x = 60,627.30 × 31,961.80
  4. Step 4: Simplify right side
    40,418.20x = 1,937,757,637.14
  5. Step 5: Solve for x
    x = 1,937,757,637.14/40,418.20
  6. Step 6: Final answer
    x = 47,942.70

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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.