Home / 54,001.48-81,002.94-18,942.16

Finding the Fourth Proportional to 54,001.48, 81,002.94 and 18,942.16

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Solution

The fourth proportional to 54,001.48, 81,002.94 and 18,942.16 is: 28,413.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,001.48 : 81,002.94 = 18,942.16 : x
  2. Step 2: Convert to fraction form
    54,001.48/81,002.94 = 18,942.16/x
  3. Step 3: Cross multiply
    54,001.48x = 81,002.94 × 18,942.16
  4. Step 4: Simplify right side
    54,001.48x = 1,534,370,649.95
  5. Step 5: Solve for x
    x = 1,534,370,649.95/54,001.48
  6. Step 6: Final answer
    x = 28,413.49

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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.