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Finding the Fourth Proportional to 68,425.78, 94,422.19 and 38,208.74

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Solution

The fourth proportional to 68,425.78, 94,422.19 and 38,208.74 is: 52,725.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,425.78 : 94,422.19 = 38,208.74 : x
  2. Step 2: Convert to fraction form
    68,425.78/94,422.19 = 38,208.74/x
  3. Step 3: Cross multiply
    68,425.78x = 94,422.19 × 38,208.74
  4. Step 4: Simplify right side
    68,425.78x = 3,607,752,907.94
  5. Step 5: Solve for x
    x = 3,607,752,907.94/68,425.78
  6. Step 6: Final answer
    x = 52,725.05

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1.5x scale

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.