Home / 86,912.02-130,357.14-27,742.78

Finding the Fourth Proportional to 86,912.02, 130,357.14 and 27,742.78

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Solution

The fourth proportional to 86,912.02, 130,357.14 and 27,742.78 is: 41,610.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,912.02 : 130,357.14 = 27,742.78 : x
  2. Step 2: Convert to fraction form
    86,912.02/130,357.14 = 27,742.78/x
  3. Step 3: Cross multiply
    86,912.02x = 130,357.14 × 27,742.78
  4. Step 4: Simplify right side
    86,912.02x = 3,616,469,456.45
  5. Step 5: Solve for x
    x = 3,616,469,456.45/86,912.02
  6. Step 6: Final answer
    x = 41,610.69

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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.