Home / 86,343.19-129,588.59-33,789.58

Finding the Fourth Proportional to 86,343.19, 129,588.59 and 33,789.58

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Solution

The fourth proportional to 86,343.19, 129,588.59 and 33,789.58 is: 50,713.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,343.19 : 129,588.59 = 33,789.58 : x
  2. Step 2: Convert to fraction form
    86,343.19/129,588.59 = 33,789.58/x
  3. Step 3: Cross multiply
    86,343.19x = 129,588.59 × 33,789.58
  4. Step 4: Simplify right side
    86,343.19x = 4,378,743,789.39
  5. Step 5: Solve for x
    x = 4,378,743,789.39/86,343.19
  6. Step 6: Final answer
    x = 50,713.25

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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.