Home / 54,557.47-81,836.28-17,120.41

Finding the Fourth Proportional to 54,557.47, 81,836.28 and 17,120.41

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Solution

The fourth proportional to 54,557.47, 81,836.28 and 17,120.41 is: 25,680.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,557.47 : 81,836.28 = 17,120.41 : x
  2. Step 2: Convert to fraction form
    54,557.47/81,836.28 = 17,120.41/x
  3. Step 3: Cross multiply
    54,557.47x = 81,836.28 × 17,120.41
  4. Step 4: Simplify right side
    54,557.47x = 1,401,070,666.47
  5. Step 5: Solve for x
    x = 1,401,070,666.47/54,557.47
  6. Step 6: Final answer
    x = 25,680.64

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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.