Home / 71,921.41-107,918.56-47,922.12

Finding the Fourth Proportional to 71,921.41, 107,918.56 and 47,922.12

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Solution

The fourth proportional to 71,921.41, 107,918.56 and 47,922.12 is: 71,907.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,921.41 : 107,918.56 = 47,922.12 : x
  2. Step 2: Convert to fraction form
    71,921.41/107,918.56 = 47,922.12/x
  3. Step 3: Cross multiply
    71,921.41x = 107,918.56 × 47,922.12
  4. Step 4: Simplify right side
    71,921.41x = 5,171,685,942.94
  5. Step 5: Solve for x
    x = 5,171,685,942.94/71,921.41
  6. Step 6: Final answer
    x = 71,907.46

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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.