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Finding the Fourth Proportional to 68,955.84, 95,153.22 and 38,738.79

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Solution

The fourth proportional to 68,955.84, 95,153.22 and 38,738.79 is: 53,456.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,955.84 : 95,153.22 = 38,738.79 : x
  2. Step 2: Convert to fraction form
    68,955.84/95,153.22 = 38,738.79/x
  3. Step 3: Cross multiply
    68,955.84x = 95,153.22 × 38,738.79
  4. Step 4: Simplify right side
    68,955.84x = 3,686,120,607.40
  5. Step 5: Solve for x
    x = 3,686,120,607.40/68,955.84
  6. Step 6: Final answer
    x = 53,456.25

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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.