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Finding the Fourth Proportional to 68,855.87, 95,024.73 and 38,639.63

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Solution

The fourth proportional to 68,855.87, 95,024.73 and 38,639.63 is: 53,324.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,855.87 : 95,024.73 = 38,639.63 : x
  2. Step 2: Convert to fraction form
    68,855.87/95,024.73 = 38,639.63/x
  3. Step 3: Cross multiply
    68,855.87x = 95,024.73 × 38,639.63
  4. Step 4: Simplify right side
    68,855.87x = 3,671,719,932.93
  5. Step 5: Solve for x
    x = 3,671,719,932.93/68,855.87
  6. Step 6: Final answer
    x = 53,324.72

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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.