Home / 68,680.54-94,781.25-38,465.80

Finding the Fourth Proportional to 68,680.54, 94,781.25 and 38,465.80

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Solution

The fourth proportional to 68,680.54, 94,781.25 and 38,465.80 is: 53,083.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,680.54 : 94,781.25 = 38,465.80 : x
  2. Step 2: Convert to fraction form
    68,680.54/94,781.25 = 38,465.80/x
  3. Step 3: Cross multiply
    68,680.54x = 94,781.25 × 38,465.80
  4. Step 4: Simplify right side
    68,680.54x = 3,645,836,606.25
  5. Step 5: Solve for x
    x = 3,645,836,606.25/68,680.54
  6. Step 6: Final answer
    x = 53,083.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.