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Finding the Fourth Proportional to 68,359.85, 94,322.51 and 39,282.60

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Solution

The fourth proportional to 68,359.85, 94,322.51 and 39,282.60 is: 54,201.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,359.85 : 94,322.51 = 39,282.60 : x
  2. Step 2: Convert to fraction form
    68,359.85/94,322.51 = 39,282.60/x
  3. Step 3: Cross multiply
    68,359.85x = 94,322.51 × 39,282.60
  4. Step 4: Simplify right side
    68,359.85x = 3,705,233,360.17
  5. Step 5: Solve for x
    x = 3,705,233,360.17/68,359.85
  6. Step 6: Final answer
    x = 54,201.90

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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.