Home / 68,511.31-94,544.89-40,211.53

Finding the Fourth Proportional to 68,511.31, 94,544.89 and 40,211.53

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Solution

The fourth proportional to 68,511.31, 94,544.89 and 40,211.53 is: 55,491.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,511.31 : 94,544.89 = 40,211.53 : x
  2. Step 2: Convert to fraction form
    68,511.31/94,544.89 = 40,211.53/x
  3. Step 3: Cross multiply
    68,511.31x = 94,544.89 × 40,211.53
  4. Step 4: Simplify right side
    68,511.31x = 3,801,794,680.58
  5. Step 5: Solve for x
    x = 3,801,794,680.58/68,511.31
  6. Step 6: Final answer
    x = 55,491.49

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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.