Home / 65,083.28-89,861.48-50,759.11

Finding the Fourth Proportional to 65,083.28, 89,861.48 and 50,759.11

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Solution

The fourth proportional to 65,083.28, 89,861.48 and 50,759.11 is: 70,083.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,083.28 : 89,861.48 = 50,759.11 : x
  2. Step 2: Convert to fraction form
    65,083.28/89,861.48 = 50,759.11/x
  3. Step 3: Cross multiply
    65,083.28x = 89,861.48 × 50,759.11
  4. Step 4: Simplify right side
    65,083.28x = 4,561,288,717.38
  5. Step 5: Solve for x
    x = 4,561,288,717.38/65,083.28
  6. Step 6: Final answer
    x = 70,083.88

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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.