Home / 54,087.80-81,021.53-44,128.04

Finding the Fourth Proportional to 54,087.80, 81,021.53 and 44,128.04

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Solution

The fourth proportional to 54,087.80, 81,021.53 and 44,128.04 is: 66,102.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,087.80 : 81,021.53 = 44,128.04 : x
  2. Step 2: Convert to fraction form
    54,087.80/81,021.53 = 44,128.04/x
  3. Step 3: Cross multiply
    54,087.80x = 81,021.53 × 44,128.04
  4. Step 4: Simplify right side
    54,087.80x = 3,575,320,690.95
  5. Step 5: Solve for x
    x = 3,575,320,690.95/54,087.80
  6. Step 6: Final answer
    x = 66,102.17

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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.