Home / 86,183.10-129,294.09-35,580.78

Finding the Fourth Proportional to 86,183.10, 129,294.09 and 35,580.78

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Solution

The fourth proportional to 86,183.10, 129,294.09 and 35,580.78 is: 53,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,183.10 : 129,294.09 = 35,580.78 : x
  2. Step 2: Convert to fraction form
    86,183.10/129,294.09 = 35,580.78/x
  3. Step 3: Cross multiply
    86,183.10x = 129,294.09 × 35,580.78
  4. Step 4: Simplify right side
    86,183.10x = 4,600,384,571.59
  5. Step 5: Solve for x
    x = 4,600,384,571.59/86,183.10
  6. Step 6: Final answer
    x = 53,379.20

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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.