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Finding the Fourth Proportional to 68,892, 95,064.37 and 38,670.39

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Solution

The fourth proportional to 68,892, 95,064.37 and 38,670.39 is: 53,361.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,892 : 95,064.37 = 38,670.39 : x
  2. Step 2: Convert to fraction form
    68,892/95,064.37 = 38,670.39/x
  3. Step 3: Cross multiply
    68,892x = 95,064.37 × 38,670.39
  4. Step 4: Simplify right side
    68,892x = 3,676,176,263.00
  5. Step 5: Solve for x
    x = 3,676,176,263.00/68,892
  6. Step 6: Final answer
    x = 53,361.44

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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.