Home / 57,986.12-86,991.57-18,004.22

Finding the Fourth Proportional to 57,986.12, 86,991.57 and 18,004.22

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Solution

The fourth proportional to 57,986.12, 86,991.57 and 18,004.22 is: 27,010.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,986.12 : 86,991.57 = 18,004.22 : x
  2. Step 2: Convert to fraction form
    57,986.12/86,991.57 = 18,004.22/x
  3. Step 3: Cross multiply
    57,986.12x = 86,991.57 × 18,004.22
  4. Step 4: Simplify right side
    57,986.12x = 1,566,215,364.43
  5. Step 5: Solve for x
    x = 1,566,215,364.43/57,986.12
  6. Step 6: Final answer
    x = 27,010.18

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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.