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Finding the Fourth Proportional to 68,433.60, 94,437.12 and 38,625.60

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Solution

The fourth proportional to 68,433.60, 94,437.12 and 38,625.60 is: 53,302.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,433.60 : 94,437.12 = 38,625.60 : x
  2. Step 2: Convert to fraction form
    68,433.60/94,437.12 = 38,625.60/x
  3. Step 3: Cross multiply
    68,433.60x = 94,437.12 × 38,625.60
  4. Step 4: Simplify right side
    68,433.60x = 3,647,690,422.27
  5. Step 5: Solve for x
    x = 3,647,690,422.27/68,433.60
  6. Step 6: Final answer
    x = 53,302.62

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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.