Home / 54,081.03-81,121.53-39,383.49

Finding the Fourth Proportional to 54,081.03, 81,121.53 and 39,383.49

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Solution

The fourth proportional to 54,081.03, 81,121.53 and 39,383.49 is: 59,075.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,081.03 : 81,121.53 = 39,383.49 : x
  2. Step 2: Convert to fraction form
    54,081.03/81,121.53 = 39,383.49/x
  3. Step 3: Cross multiply
    54,081.03x = 81,121.53 × 39,383.49
  4. Step 4: Simplify right side
    54,081.03x = 3,194,848,965.54
  5. Step 5: Solve for x
    x = 3,194,848,965.54/54,081.03
  6. Step 6: Final answer
    x = 59,075.22

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1.5x scale

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.