Home / 68,718.25-103,089.69-35,429.38

Finding the Fourth Proportional to 68,718.25, 103,089.69 and 35,429.38

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Solution

The fourth proportional to 68,718.25, 103,089.69 and 35,429.38 is: 53,150.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,718.25 : 103,089.69 = 35,429.38 : x
  2. Step 2: Convert to fraction form
    68,718.25/103,089.69 = 35,429.38/x
  3. Step 3: Cross multiply
    68,718.25x = 103,089.69 × 35,429.38
  4. Step 4: Simplify right side
    68,718.25x = 3,652,403,801.09
  5. Step 5: Solve for x
    x = 3,652,403,801.09/68,718.25
  6. Step 6: Final answer
    x = 53,150.42

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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.