Home / 54,001.74-81,003.34-18,942.42

Finding the Fourth Proportional to 54,001.74, 81,003.34 and 18,942.42

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Solution

The fourth proportional to 54,001.74, 81,003.34 and 18,942.42 is: 28,413.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,001.74 : 81,003.34 = 18,942.42 : x
  2. Step 2: Convert to fraction form
    54,001.74/81,003.34 = 18,942.42/x
  3. Step 3: Cross multiply
    54,001.74x = 81,003.34 × 18,942.42
  4. Step 4: Simplify right side
    54,001.74x = 1,534,399,287.68
  5. Step 5: Solve for x
    x = 1,534,399,287.68/54,001.74
  6. Step 6: Final answer
    x = 28,413.89

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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.