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Finding the Fourth Proportional to 68,673.56, 94,787.84 and 64,491.53

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Solution

The fourth proportional to 68,673.56, 94,787.84 and 64,491.53 is: 89,015.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,673.56 : 94,787.84 = 64,491.53 : x
  2. Step 2: Convert to fraction form
    68,673.56/94,787.84 = 64,491.53/x
  3. Step 3: Cross multiply
    68,673.56x = 94,787.84 × 64,491.53
  4. Step 4: Simplify right side
    68,673.56x = 6,113,012,504.54
  5. Step 5: Solve for x
    x = 6,113,012,504.54/68,673.56
  6. Step 6: Final answer
    x = 89,015.52

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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.