Home / 54,466.90-81,684.15-21,167.80

Finding the Fourth Proportional to 54,466.90, 81,684.15 and 21,167.80

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Solution

The fourth proportional to 54,466.90, 81,684.15 and 21,167.80 is: 31,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,466.90 : 81,684.15 = 21,167.80 : x
  2. Step 2: Convert to fraction form
    54,466.90/81,684.15 = 21,167.80/x
  3. Step 3: Cross multiply
    54,466.90x = 81,684.15 × 21,167.80
  4. Step 4: Simplify right side
    54,466.90x = 1,729,073,750.37
  5. Step 5: Solve for x
    x = 1,729,073,750.37/54,466.90
  6. Step 6: Final answer
    x = 31,745.40

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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.