Home / 49,863.20-74,665.20-39,408.80

Finding the Fourth Proportional to 49,863.20, 74,665.20 and 39,408.80

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Solution

The fourth proportional to 49,863.20, 74,665.20 and 39,408.80 is: 59,010.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,863.20 : 74,665.20 = 39,408.80 : x
  2. Step 2: Convert to fraction form
    49,863.20/74,665.20 = 39,408.80/x
  3. Step 3: Cross multiply
    49,863.20x = 74,665.20 × 39,408.80
  4. Step 4: Simplify right side
    49,863.20x = 2,942,465,933.76
  5. Step 5: Solve for x
    x = 2,942,465,933.76/49,863.20
  6. Step 6: Final answer
    x = 59,010.77

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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.