Home / 71,071.89-106,612.97-20,468.85

Finding the Fourth Proportional to 71,071.89, 106,612.97 and 20,468.85

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Solution

The fourth proportional to 71,071.89, 106,612.97 and 20,468.85 is: 30,704.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,071.89 : 106,612.97 = 20,468.85 : x
  2. Step 2: Convert to fraction form
    71,071.89/106,612.97 = 20,468.85/x
  3. Step 3: Cross multiply
    71,071.89x = 106,612.97 × 20,468.85
  4. Step 4: Simplify right side
    71,071.89x = 2,182,244,788.64
  5. Step 5: Solve for x
    x = 2,182,244,788.64/71,071.89
  6. Step 6: Final answer
    x = 30,704.75

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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.