Home / 54,051.67-81,081.83-18,999.19

Finding the Fourth Proportional to 54,051.67, 81,081.83 and 18,999.19

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Solution

The fourth proportional to 54,051.67, 81,081.83 and 18,999.19 is: 28,500.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,051.67 : 81,081.83 = 18,999.19 : x
  2. Step 2: Convert to fraction form
    54,051.67/81,081.83 = 18,999.19/x
  3. Step 3: Cross multiply
    54,051.67x = 81,081.83 × 18,999.19
  4. Step 4: Simplify right side
    54,051.67x = 1,540,489,093.72
  5. Step 5: Solve for x
    x = 1,540,489,093.72/54,051.67
  6. Step 6: Final answer
    x = 28,500.31

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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.