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Finding the Fourth Proportional to 68,360.73, 102,505.53 and 30,902.88

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Solution

The fourth proportional to 68,360.73, 102,505.53 and 30,902.88 is: 46,338.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,360.73 : 102,505.53 = 30,902.88 : x
  2. Step 2: Convert to fraction form
    68,360.73/102,505.53 = 30,902.88/x
  3. Step 3: Cross multiply
    68,360.73x = 102,505.53 × 30,902.88
  4. Step 4: Simplify right side
    68,360.73x = 3,167,716,092.93
  5. Step 5: Solve for x
    x = 3,167,716,092.93/68,360.73
  6. Step 6: Final answer
    x = 46,338.24

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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.