Home / 89,704.05-123,791.02-49,416.88

Finding the Fourth Proportional to 89,704.05, 123,791.02 and 49,416.88

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Solution

The fourth proportional to 89,704.05, 123,791.02 and 49,416.88 is: 68,194.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,704.05 : 123,791.02 = 49,416.88 : x
  2. Step 2: Convert to fraction form
    89,704.05/123,791.02 = 49,416.88/x
  3. Step 3: Cross multiply
    89,704.05x = 123,791.02 × 49,416.88
  4. Step 4: Simplify right side
    89,704.05x = 6,117,365,578.59
  5. Step 5: Solve for x
    x = 6,117,365,578.59/89,704.05
  6. Step 6: Final answer
    x = 68,194.98

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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.