Home / 68,787.52-103,142.40-33,743.68

Finding the Fourth Proportional to 68,787.52, 103,142.40 and 33,743.68

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Solution

The fourth proportional to 68,787.52, 103,142.40 and 33,743.68 is: 50,596.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,787.52 : 103,142.40 = 33,743.68 : x
  2. Step 2: Convert to fraction form
    68,787.52/103,142.40 = 33,743.68/x
  3. Step 3: Cross multiply
    68,787.52x = 103,142.40 × 33,743.68
  4. Step 4: Simplify right side
    68,787.52x = 3,480,404,140.03
  5. Step 5: Solve for x
    x = 3,480,404,140.03/68,787.52
  6. Step 6: Final answer
    x = 50,596.45

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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.