Home / 54,480.90-81,721.36-19,395.96

Finding the Fourth Proportional to 54,480.90, 81,721.36 and 19,395.96

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Solution

The fourth proportional to 54,480.90, 81,721.36 and 19,395.96 is: 29,093.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,480.90 : 81,721.36 = 19,395.96 : x
  2. Step 2: Convert to fraction form
    54,480.90/81,721.36 = 19,395.96/x
  3. Step 3: Cross multiply
    54,480.90x = 81,721.36 × 19,395.96
  4. Step 4: Simplify right side
    54,480.90x = 1,585,064,229.71
  5. Step 5: Solve for x
    x = 1,585,064,229.71/54,480.90
  6. Step 6: Final answer
    x = 29,093.94

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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.