Home / 68,379.17-94,356.86-39,691.22

Finding the Fourth Proportional to 68,379.17, 94,356.86 and 39,691.22

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Solution

The fourth proportional to 68,379.17, 94,356.86 and 39,691.22 is: 54,770.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,379.17 : 94,356.86 = 39,691.22 : x
  2. Step 2: Convert to fraction form
    68,379.17/94,356.86 = 39,691.22/x
  3. Step 3: Cross multiply
    68,379.17x = 94,356.86 × 39,691.22
  4. Step 4: Simplify right side
    68,379.17x = 3,745,138,218.53
  5. Step 5: Solve for x
    x = 3,745,138,218.53/68,379.17
  6. Step 6: Final answer
    x = 54,770.17

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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.