Home / 54,093.12-80,942.32-31,917.12

Finding the Fourth Proportional to 54,093.12, 80,942.32 and 31,917.12

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Solution

The fourth proportional to 54,093.12, 80,942.32 and 31,917.12 is: 47,759.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,093.12 : 80,942.32 = 31,917.12 : x
  2. Step 2: Convert to fraction form
    54,093.12/80,942.32 = 31,917.12/x
  3. Step 3: Cross multiply
    54,093.12x = 80,942.32 × 31,917.12
  4. Step 4: Simplify right side
    54,093.12x = 2,583,445,740.52
  5. Step 5: Solve for x
    x = 2,583,445,740.52/54,093.12
  6. Step 6: Final answer
    x = 47,759.23

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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.