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Finding the Fourth Proportional to 68,427.44, 94,428.03 and 38,211.92

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Solution

The fourth proportional to 68,427.44, 94,428.03 and 38,211.92 is: 52,731.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,427.44 : 94,428.03 = 38,211.92 : x
  2. Step 2: Convert to fraction form
    68,427.44/94,428.03 = 38,211.92/x
  3. Step 3: Cross multiply
    68,427.44x = 94,428.03 × 38,211.92
  4. Step 4: Simplify right side
    68,427.44x = 3,608,276,328.12
  5. Step 5: Solve for x
    x = 3,608,276,328.12/68,427.44
  6. Step 6: Final answer
    x = 52,731.42

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1.5x scale

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.