Home / 57,811.82-86,664.45-20,351.48

Finding the Fourth Proportional to 57,811.82, 86,664.45 and 20,351.48

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Solution

The fourth proportional to 57,811.82, 86,664.45 and 20,351.48 is: 30,508.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,811.82 : 86,664.45 = 20,351.48 : x
  2. Step 2: Convert to fraction form
    57,811.82/86,664.45 = 20,351.48/x
  3. Step 3: Cross multiply
    57,811.82x = 86,664.45 × 20,351.48
  4. Step 4: Simplify right side
    57,811.82x = 1,763,749,820.89
  5. Step 5: Solve for x
    x = 1,763,749,820.89/57,811.82
  6. Step 6: Final answer
    x = 30,508.46

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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.