Home / 54,255.03-81,383.45-19,170.15

Finding the Fourth Proportional to 54,255.03, 81,383.45 and 19,170.15

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Solution

The fourth proportional to 54,255.03, 81,383.45 and 19,170.15 is: 28,755.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,255.03 : 81,383.45 = 19,170.15 : x
  2. Step 2: Convert to fraction form
    54,255.03/81,383.45 = 19,170.15/x
  3. Step 3: Cross multiply
    54,255.03x = 81,383.45 × 19,170.15
  4. Step 4: Simplify right side
    54,255.03x = 1,560,132,848.17
  5. Step 5: Solve for x
    x = 1,560,132,848.17/54,255.03
  6. Step 6: Final answer
    x = 28,755.54

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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.