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Finding the Fourth Proportional to 68,014.68, 102,004.74 and 26,439

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Solution

The fourth proportional to 68,014.68, 102,004.74 and 26,439 is: 39,651.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,014.68 : 102,004.74 = 26,439 : x
  2. Step 2: Convert to fraction form
    68,014.68/102,004.74 = 26,439/x
  3. Step 3: Cross multiply
    68,014.68x = 102,004.74 × 26,439
  4. Step 4: Simplify right side
    68,014.68x = 2,696,903,320.86
  5. Step 5: Solve for x
    x = 2,696,903,320.86/68,014.68
  6. Step 6: Final answer
    x = 39,651.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.