Home / 55,361.22-82,992.47-20,292.68

Finding the Fourth Proportional to 55,361.22, 82,992.47 and 20,292.68

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Solution

The fourth proportional to 55,361.22, 82,992.47 and 20,292.68 is: 30,420.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,361.22 : 82,992.47 = 20,292.68 : x
  2. Step 2: Convert to fraction form
    55,361.22/82,992.47 = 20,292.68/x
  3. Step 3: Cross multiply
    55,361.22x = 82,992.47 × 20,292.68
  4. Step 4: Simplify right side
    55,361.22x = 1,684,139,119.69
  5. Step 5: Solve for x
    x = 1,684,139,119.69/55,361.22
  6. Step 6: Final answer
    x = 30,420.92

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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.