Home / 89,538.53-123,469.36-66,841.12

Finding the Fourth Proportional to 89,538.53, 123,469.36 and 66,841.12

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Solution

The fourth proportional to 89,538.53, 123,469.36 and 66,841.12 is: 92,170.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,538.53 : 123,469.36 = 66,841.12 : x
  2. Step 2: Convert to fraction form
    89,538.53/123,469.36 = 66,841.12/x
  3. Step 3: Cross multiply
    89,538.53x = 123,469.36 × 66,841.12
  4. Step 4: Simplify right side
    89,538.53x = 8,252,830,308.08
  5. Step 5: Solve for x
    x = 8,252,830,308.08/89,538.53
  6. Step 6: Final answer
    x = 92,170.71

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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.