Home / 71,899.54-107,863.43-21,986.73

Finding the Fourth Proportional to 71,899.54, 107,863.43 and 21,986.73

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Solution

The fourth proportional to 71,899.54, 107,863.43 and 21,986.73 is: 32,984.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,899.54 : 107,863.43 = 21,986.73 : x
  2. Step 2: Convert to fraction form
    71,899.54/107,863.43 = 21,986.73/x
  3. Step 3: Cross multiply
    71,899.54x = 107,863.43 × 21,986.73
  4. Step 4: Simplify right side
    71,899.54x = 2,371,564,112.28
  5. Step 5: Solve for x
    x = 2,371,564,112.28/71,899.54
  6. Step 6: Final answer
    x = 32,984.41

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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.