Home / 55,912.04-83,882.64-20,852

Finding the Fourth Proportional to 55,912.04, 83,882.64 and 20,852

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Solution

The fourth proportional to 55,912.04, 83,882.64 and 20,852 is: 31,283.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,912.04 : 83,882.64 = 20,852 : x
  2. Step 2: Convert to fraction form
    55,912.04/83,882.64 = 20,852/x
  3. Step 3: Cross multiply
    55,912.04x = 83,882.64 × 20,852
  4. Step 4: Simplify right side
    55,912.04x = 1,749,120,809.28
  5. Step 5: Solve for x
    x = 1,749,120,809.28/55,912.04
  6. Step 6: Final answer
    x = 31,283.44

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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.