Home / 89,526.60-123,540.68-51,286.30

Finding the Fourth Proportional to 89,526.60, 123,540.68 and 51,286.30

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Solution

The fourth proportional to 89,526.60, 123,540.68 and 51,286.30 is: 70,771.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,526.60 : 123,540.68 = 51,286.30 : x
  2. Step 2: Convert to fraction form
    89,526.60/123,540.68 = 51,286.30/x
  3. Step 3: Cross multiply
    89,526.60x = 123,540.68 × 51,286.30
  4. Step 4: Simplify right side
    89,526.60x = 6,335,944,196.05
  5. Step 5: Solve for x
    x = 6,335,944,196.05/89,526.60
  6. Step 6: Final answer
    x = 70,771.64

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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.