Home / 54,170.28-81,167.94-20,851.34

Finding the Fourth Proportional to 54,170.28, 81,167.94 and 20,851.34

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Solution

The fourth proportional to 54,170.28, 81,167.94 and 20,851.34 is: 31,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,170.28 : 81,167.94 = 20,851.34 : x
  2. Step 2: Convert to fraction form
    54,170.28/81,167.94 = 20,851.34/x
  3. Step 3: Cross multiply
    54,170.28x = 81,167.94 × 20,851.34
  4. Step 4: Simplify right side
    54,170.28x = 1,692,459,908.20
  5. Step 5: Solve for x
    x = 1,692,459,908.20/54,170.28
  6. Step 6: Final answer
    x = 31,243.33

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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.