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Finding the Fourth Proportional to 68,601.72, 94,640.32 and 40,294.64

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Solution

The fourth proportional to 68,601.72, 94,640.32 and 40,294.64 is: 55,588.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,601.72 : 94,640.32 = 40,294.64 : x
  2. Step 2: Convert to fraction form
    68,601.72/94,640.32 = 40,294.64/x
  3. Step 3: Cross multiply
    68,601.72x = 94,640.32 × 40,294.64
  4. Step 4: Simplify right side
    68,601.72x = 3,813,497,623.88
  5. Step 5: Solve for x
    x = 3,813,497,623.88/68,601.72
  6. Step 6: Final answer
    x = 55,588.95

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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.