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Finding the Fourth Proportional to 68,843.43, 95,014.67 and 38,640.99

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Solution

The fourth proportional to 68,843.43, 95,014.67 and 38,640.99 is: 53,330.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,843.43 : 95,014.67 = 38,640.99 : x
  2. Step 2: Convert to fraction form
    68,843.43/95,014.67 = 38,640.99/x
  3. Step 3: Cross multiply
    68,843.43x = 95,014.67 × 38,640.99
  4. Step 4: Simplify right side
    68,843.43x = 3,671,460,720.12
  5. Step 5: Solve for x
    x = 3,671,460,720.12/68,843.43
  6. Step 6: Final answer
    x = 53,330.59

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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.