Home / 86,243.46-129,221.66-30,052.60

Finding the Fourth Proportional to 86,243.46, 129,221.66 and 30,052.60

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Solution

The fourth proportional to 86,243.46, 129,221.66 and 30,052.60 is: 45,028.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,243.46 : 129,221.66 = 30,052.60 : x
  2. Step 2: Convert to fraction form
    86,243.46/129,221.66 = 30,052.60/x
  3. Step 3: Cross multiply
    86,243.46x = 129,221.66 × 30,052.60
  4. Step 4: Simplify right side
    86,243.46x = 3,883,446,386.00
  5. Step 5: Solve for x
    x = 3,883,446,386.00/86,243.46
  6. Step 6: Final answer
    x = 45,028.88

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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.