Home / 68,876.07-103,078.19-47,839.83

Finding the Fourth Proportional to 68,876.07, 103,078.19 and 47,839.83

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Solution

The fourth proportional to 68,876.07, 103,078.19 and 47,839.83 is: 71,595.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,876.07 : 103,078.19 = 47,839.83 : x
  2. Step 2: Convert to fraction form
    68,876.07/103,078.19 = 47,839.83/x
  3. Step 3: Cross multiply
    68,876.07x = 103,078.19 × 47,839.83
  4. Step 4: Simplify right side
    68,876.07x = 4,931,243,205.91
  5. Step 5: Solve for x
    x = 4,931,243,205.91/68,876.07
  6. Step 6: Final answer
    x = 71,595.89

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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.