Home / 54,171.69-81,271.38-20,882.82

Finding the Fourth Proportional to 54,171.69, 81,271.38 and 20,882.82

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Solution

The fourth proportional to 54,171.69, 81,271.38 and 20,882.82 is: 31,329.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,171.69 : 81,271.38 = 20,882.82 : x
  2. Step 2: Convert to fraction form
    54,171.69/81,271.38 = 20,882.82/x
  3. Step 3: Cross multiply
    54,171.69x = 81,271.38 × 20,882.82
  4. Step 4: Simplify right side
    54,171.69x = 1,697,175,599.69
  5. Step 5: Solve for x
    x = 1,697,175,599.69/54,171.69
  6. Step 6: Final answer
    x = 31,329.57

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1.5x scale

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.