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Finding the Fourth Proportional to 68,766, 94,897.14 and 38,958

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Solution

The fourth proportional to 68,766, 94,897.14 and 38,958 is: 53,762.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,766 : 94,897.14 = 38,958 : x
  2. Step 2: Convert to fraction form
    68,766/94,897.14 = 38,958/x
  3. Step 3: Cross multiply
    68,766x = 94,897.14 × 38,958
  4. Step 4: Simplify right side
    68,766x = 3,697,002,780.12
  5. Step 5: Solve for x
    x = 3,697,002,780.12/68,766
  6. Step 6: Final answer
    x = 53,762.07

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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.