Home / 68,049.75-93,908.67-39,755.64

Finding the Fourth Proportional to 68,049.75, 93,908.67 and 39,755.64

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Solution

The fourth proportional to 68,049.75, 93,908.67 and 39,755.64 is: 54,862.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,049.75 : 93,908.67 = 39,755.64 : x
  2. Step 2: Convert to fraction form
    68,049.75/93,908.67 = 39,755.64/x
  3. Step 3: Cross multiply
    68,049.75x = 93,908.67 × 39,755.64
  4. Step 4: Simplify right side
    68,049.75x = 3,733,399,277.40
  5. Step 5: Solve for x
    x = 3,733,399,277.40/68,049.75
  6. Step 6: Final answer
    x = 54,862.79

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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.