Home / 54,735.75-82,128.33-31,362.19

Finding the Fourth Proportional to 54,735.75, 82,128.33 and 31,362.19

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Solution

The fourth proportional to 54,735.75, 82,128.33 and 31,362.19 is: 47,057.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,735.75 : 82,128.33 = 31,362.19 : x
  2. Step 2: Convert to fraction form
    54,735.75/82,128.33 = 31,362.19/x
  3. Step 3: Cross multiply
    54,735.75x = 82,128.33 × 31,362.19
  4. Step 4: Simplify right side
    54,735.75x = 2,575,724,084.52
  5. Step 5: Solve for x
    x = 2,575,724,084.52/54,735.75
  6. Step 6: Final answer
    x = 47,057.44

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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.