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Finding the Fourth Proportional to 68,593.68, 94,659.12 and 40,315.68

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Solution

The fourth proportional to 68,593.68, 94,659.12 and 40,315.68 is: 55,635.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,593.68 : 94,659.12 = 40,315.68 : x
  2. Step 2: Convert to fraction form
    68,593.68/94,659.12 = 40,315.68/x
  3. Step 3: Cross multiply
    68,593.68x = 94,659.12 × 40,315.68
  4. Step 4: Simplify right side
    68,593.68x = 3,816,246,791.00
  5. Step 5: Solve for x
    x = 3,816,246,791.00/68,593.68
  6. Step 6: Final answer
    x = 55,635.55

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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.