Home / 86,171.40-129,204.18-33,519.60

Finding the Fourth Proportional to 86,171.40, 129,204.18 and 33,519.60

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Solution

The fourth proportional to 86,171.40, 129,204.18 and 33,519.60 is: 50,258.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,171.40 : 129,204.18 = 33,519.60 : x
  2. Step 2: Convert to fraction form
    86,171.40/129,204.18 = 33,519.60/x
  3. Step 3: Cross multiply
    86,171.40x = 129,204.18 × 33,519.60
  4. Step 4: Simplify right side
    86,171.40x = 4,330,872,431.93
  5. Step 5: Solve for x
    x = 4,330,872,431.93/86,171.40
  6. Step 6: Final answer
    x = 50,258.81

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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.