Home / 68,868.63-103,138.92-47,829.69

Finding the Fourth Proportional to 68,868.63, 103,138.92 and 47,829.69

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Solution

The fourth proportional to 68,868.63, 103,138.92 and 47,829.69 is: 71,630.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,868.63 : 103,138.92 = 47,829.69 : x
  2. Step 2: Convert to fraction form
    68,868.63/103,138.92 = 47,829.69/x
  3. Step 3: Cross multiply
    68,868.63x = 103,138.92 × 47,829.69
  4. Step 4: Simplify right side
    68,868.63x = 4,933,102,570.53
  5. Step 5: Solve for x
    x = 4,933,102,570.53/68,868.63
  6. Step 6: Final answer
    x = 71,630.62

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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.