Home / 54,364.53-81,567.55-21,107.94

Finding the Fourth Proportional to 54,364.53, 81,567.55 and 21,107.94

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Solution

The fourth proportional to 54,364.53, 81,567.55 and 21,107.94 is: 31,669.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,364.53 : 81,567.55 = 21,107.94 : x
  2. Step 2: Convert to fraction form
    54,364.53/81,567.55 = 21,107.94/x
  3. Step 3: Cross multiply
    54,364.53x = 81,567.55 × 21,107.94
  4. Step 4: Simplify right side
    54,364.53x = 1,721,722,845.81
  5. Step 5: Solve for x
    x = 1,721,722,845.81/54,364.53
  6. Step 6: Final answer
    x = 31,669.97

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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.