Home / 54,539.11-81,821.83-18,995.23

Finding the Fourth Proportional to 54,539.11, 81,821.83 and 18,995.23

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Solution

The fourth proportional to 54,539.11, 81,821.83 and 18,995.23 is: 28,497.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,539.11 : 81,821.83 = 18,995.23 : x
  2. Step 2: Convert to fraction form
    54,539.11/81,821.83 = 18,995.23/x
  3. Step 3: Cross multiply
    54,539.11x = 81,821.83 × 18,995.23
  4. Step 4: Simplify right side
    54,539.11x = 1,554,224,479.87
  5. Step 5: Solve for x
    x = 1,554,224,479.87/54,539.11
  6. Step 6: Final answer
    x = 28,497.43

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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.