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Finding the Fourth Proportional to 68,237.76, 94,168.78 and 39,944.04

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Solution

The fourth proportional to 68,237.76, 94,168.78 and 39,944.04 is: 55,123.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,237.76 : 94,168.78 = 39,944.04 : x
  2. Step 2: Convert to fraction form
    68,237.76/94,168.78 = 39,944.04/x
  3. Step 3: Cross multiply
    68,237.76x = 94,168.78 × 39,944.04
  4. Step 4: Simplify right side
    68,237.76x = 3,761,481,515.07
  5. Step 5: Solve for x
    x = 3,761,481,515.07/68,237.76
  6. Step 6: Final answer
    x = 55,123.17

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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.