Home / 68,838.22-103,288.92-40,813.84

Finding the Fourth Proportional to 68,838.22, 103,288.92 and 40,813.84

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Solution

The fourth proportional to 68,838.22, 103,288.92 and 40,813.84 is: 61,239.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,838.22 : 103,288.92 = 40,813.84 : x
  2. Step 2: Convert to fraction form
    68,838.22/103,288.92 = 40,813.84/x
  3. Step 3: Cross multiply
    68,838.22x = 103,288.92 × 40,813.84
  4. Step 4: Simplify right side
    68,838.22x = 4,215,617,454.65
  5. Step 5: Solve for x
    x = 4,215,617,454.65/68,838.22
  6. Step 6: Final answer
    x = 61,239.49

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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.