Home / 54,426.43-81,633.52-18,881.20

Finding the Fourth Proportional to 54,426.43, 81,633.52 and 18,881.20

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Solution

The fourth proportional to 54,426.43, 81,633.52 and 18,881.20 is: 28,319.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,426.43 : 81,633.52 = 18,881.20 : x
  2. Step 2: Convert to fraction form
    54,426.43/81,633.52 = 18,881.20/x
  3. Step 3: Cross multiply
    54,426.43x = 81,633.52 × 18,881.20
  4. Step 4: Simplify right side
    54,426.43x = 1,541,338,943.47
  5. Step 5: Solve for x
    x = 1,541,338,943.47/54,426.43
  6. Step 6: Final answer
    x = 28,319.68

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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.