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Finding the Fourth Proportional to 68,493.66, 102,810.33 and 36,902.40

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Solution

The fourth proportional to 68,493.66, 102,810.33 and 36,902.40 is: 55,391.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,493.66 : 102,810.33 = 36,902.40 : x
  2. Step 2: Convert to fraction form
    68,493.66/102,810.33 = 36,902.40/x
  3. Step 3: Cross multiply
    68,493.66x = 102,810.33 × 36,902.40
  4. Step 4: Simplify right side
    68,493.66x = 3,793,947,921.79
  5. Step 5: Solve for x
    x = 3,793,947,921.79/68,493.66
  6. Step 6: Final answer
    x = 55,391.23

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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.