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Finding the Fourth Proportional to 68,691.66, 94,795.46 and 40,010.57

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Solution

The fourth proportional to 68,691.66, 94,795.46 and 40,010.57 is: 55,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,691.66 : 94,795.46 = 40,010.57 : x
  2. Step 2: Convert to fraction form
    68,691.66/94,795.46 = 40,010.57/x
  3. Step 3: Cross multiply
    68,691.66x = 94,795.46 × 40,010.57
  4. Step 4: Simplify right side
    68,691.66x = 3,792,819,713.98
  5. Step 5: Solve for x
    x = 3,792,819,713.98/68,691.66
  6. Step 6: Final answer
    x = 55,215.14

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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.