Home / 55,424.10-83,133.62-20,361.18

Finding the Fourth Proportional to 55,424.10, 83,133.62 and 20,361.18

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Solution

The fourth proportional to 55,424.10, 83,133.62 and 20,361.18 is: 30,540.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,424.10 : 83,133.62 = 20,361.18 : x
  2. Step 2: Convert to fraction form
    55,424.10/83,133.62 = 20,361.18/x
  3. Step 3: Cross multiply
    55,424.10x = 83,133.62 × 20,361.18
  4. Step 4: Simplify right side
    55,424.10x = 1,692,698,600.87
  5. Step 5: Solve for x
    x = 1,692,698,600.87/55,424.10
  6. Step 6: Final answer
    x = 30,540.84

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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.