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Finding the Fourth Proportional to 68,717.91, 94,828.74 and 40,043.91

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Solution

The fourth proportional to 68,717.91, 94,828.74 and 40,043.91 is: 55,259.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,717.91 : 94,828.74 = 40,043.91 : x
  2. Step 2: Convert to fraction form
    68,717.91/94,828.74 = 40,043.91/x
  3. Step 3: Cross multiply
    68,717.91x = 94,828.74 × 40,043.91
  4. Step 4: Simplify right side
    68,717.91x = 3,797,313,529.97
  5. Step 5: Solve for x
    x = 3,797,313,529.97/68,717.91
  6. Step 6: Final answer
    x = 55,259.44

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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.