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Finding the Fourth Proportional to 68,146, 94,041.48 and 38,338

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Solution

The fourth proportional to 68,146, 94,041.48 and 38,338 is: 52,906.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,146 : 94,041.48 = 38,338 : x
  2. Step 2: Convert to fraction form
    68,146/94,041.48 = 38,338/x
  3. Step 3: Cross multiply
    68,146x = 94,041.48 × 38,338
  4. Step 4: Simplify right side
    68,146x = 3,605,362,260.24
  5. Step 5: Solve for x
    x = 3,605,362,260.24/68,146
  6. Step 6: Final answer
    x = 52,906.44

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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.