Home / 86,434.00-129,650.76-33,806.54

Finding the Fourth Proportional to 86,434.00, 129,650.76 and 33,806.54

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Solution

The fourth proportional to 86,434.00, 129,650.76 and 33,806.54 is: 50,709.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,434.00 : 129,650.76 = 33,806.54 : x
  2. Step 2: Convert to fraction form
    86,434.00/129,650.76 = 33,806.54/x
  3. Step 3: Cross multiply
    86,434.00x = 129,650.76 × 33,806.54
  4. Step 4: Simplify right side
    86,434.00x = 4,383,043,928.10
  5. Step 5: Solve for x
    x = 4,383,043,928.10/86,434.00
  6. Step 6: Final answer
    x = 50,709.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.