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Finding the Fourth Proportional to 68,254.92, 94,193.64 and 39,188.16

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Solution

The fourth proportional to 68,254.92, 94,193.64 and 39,188.16 is: 54,080.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,254.92 : 94,193.64 = 39,188.16 : x
  2. Step 2: Convert to fraction form
    68,254.92/94,193.64 = 39,188.16/x
  3. Step 3: Cross multiply
    68,254.92x = 94,193.64 × 39,188.16
  4. Step 4: Simplify right side
    68,254.92x = 3,691,275,435.30
  5. Step 5: Solve for x
    x = 3,691,275,435.30/68,254.92
  6. Step 6: Final answer
    x = 54,080.72

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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.