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Finding the Fourth Proportional to 68,074, 93,843.64 and 45,065.27

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Solution

The fourth proportional to 68,074, 93,843.64 and 45,065.27 is: 62,124.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,074 : 93,843.64 = 45,065.27 : x
  2. Step 2: Convert to fraction form
    68,074/93,843.64 = 45,065.27/x
  3. Step 3: Cross multiply
    68,074x = 93,843.64 × 45,065.27
  4. Step 4: Simplify right side
    68,074x = 4,229,088,974.38
  5. Step 5: Solve for x
    x = 4,229,088,974.38/68,074
  6. Step 6: Final answer
    x = 62,124.88

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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.