Home / 65,215.30-89,997.60-36,920.38

Finding the Fourth Proportional to 65,215.30, 89,997.60 and 36,920.38

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Solution

The fourth proportional to 65,215.30, 89,997.60 and 36,920.38 is: 50,950.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,215.30 : 89,997.60 = 36,920.38 : x
  2. Step 2: Convert to fraction form
    65,215.30/89,997.60 = 36,920.38/x
  3. Step 3: Cross multiply
    65,215.30x = 89,997.60 × 36,920.38
  4. Step 4: Simplify right side
    65,215.30x = 3,322,745,591.09
  5. Step 5: Solve for x
    x = 3,322,745,591.09/65,215.30
  6. Step 6: Final answer
    x = 50,950.40

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Similar ratio
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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.