Home / 54,519.82-81,772.54-18,973.55

Finding the Fourth Proportional to 54,519.82, 81,772.54 and 18,973.55

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Solution

The fourth proportional to 54,519.82, 81,772.54 and 18,973.55 is: 28,457.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,519.82 : 81,772.54 = 18,973.55 : x
  2. Step 2: Convert to fraction form
    54,519.82/81,772.54 = 18,973.55/x
  3. Step 3: Cross multiply
    54,519.82x = 81,772.54 × 18,973.55
  4. Step 4: Simplify right side
    54,519.82x = 1,551,515,533.31
  5. Step 5: Solve for x
    x = 1,551,515,533.31/54,519.82
  6. Step 6: Final answer
    x = 28,457.83

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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.