Home / 86,379.09-129,584.97-33,785.25

Finding the Fourth Proportional to 86,379.09, 129,584.97 and 33,785.25

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Solution

The fourth proportional to 86,379.09, 129,584.97 and 33,785.25 is: 50,684.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,379.09 : 129,584.97 = 33,785.25 : x
  2. Step 2: Convert to fraction form
    86,379.09/129,584.97 = 33,785.25/x
  3. Step 3: Cross multiply
    86,379.09x = 129,584.97 × 33,785.25
  4. Step 4: Simplify right side
    86,379.09x = 4,378,060,607.69
  5. Step 5: Solve for x
    x = 4,378,060,607.69/86,379.09
  6. Step 6: Final answer
    x = 50,684.26

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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.