Home / 57,608.89-86,422.46-20,168.06

Finding the Fourth Proportional to 57,608.89, 86,422.46 and 20,168.06

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Solution

The fourth proportional to 57,608.89, 86,422.46 and 20,168.06 is: 30,255.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,608.89 : 86,422.46 = 20,168.06 : x
  2. Step 2: Convert to fraction form
    57,608.89/86,422.46 = 20,168.06/x
  3. Step 3: Cross multiply
    57,608.89x = 86,422.46 × 20,168.06
  4. Step 4: Simplify right side
    57,608.89x = 1,742,972,825.68
  5. Step 5: Solve for x
    x = 1,742,972,825.68/57,608.89
  6. Step 6: Final answer
    x = 30,255.28

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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.