Home / 49,638.48-74,455.86-12,198.66

Finding the Fourth Proportional to 49,638.48, 74,455.86 and 12,198.66

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Solution

The fourth proportional to 49,638.48, 74,455.86 and 12,198.66 is: 18,297.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,638.48 : 74,455.86 = 12,198.66 : x
  2. Step 2: Convert to fraction form
    49,638.48/74,455.86 = 12,198.66/x
  3. Step 3: Cross multiply
    49,638.48x = 74,455.86 × 12,198.66
  4. Step 4: Simplify right side
    49,638.48x = 908,261,721.15
  5. Step 5: Solve for x
    x = 908,261,721.15/49,638.48
  6. Step 6: Final answer
    x = 18,297.53

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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.