Home / 71,921.08-107,918.06-47,921.79

Finding the Fourth Proportional to 71,921.08, 107,918.06 and 47,921.79

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Solution

The fourth proportional to 71,921.08, 107,918.06 and 47,921.79 is: 71,906.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,921.08 : 107,918.06 = 47,921.79 : x
  2. Step 2: Convert to fraction form
    71,921.08/107,918.06 = 47,921.79/x
  3. Step 3: Cross multiply
    71,921.08x = 107,918.06 × 47,921.79
  4. Step 4: Simplify right side
    71,921.08x = 5,171,626,728.33
  5. Step 5: Solve for x
    x = 5,171,626,728.33/71,921.08
  6. Step 6: Final answer
    x = 71,906.97

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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.