Home / 70,911.23-106,367.93-20,996.37

Finding the Fourth Proportional to 70,911.23, 106,367.93 and 20,996.37

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Solution

The fourth proportional to 70,911.23, 106,367.93 and 20,996.37 is: 31,494.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,911.23 : 106,367.93 = 20,996.37 : x
  2. Step 2: Convert to fraction form
    70,911.23/106,367.93 = 20,996.37/x
  3. Step 3: Cross multiply
    70,911.23x = 106,367.93 × 20,996.37
  4. Step 4: Simplify right side
    70,911.23x = 2,233,340,466.91
  5. Step 5: Solve for x
    x = 2,233,340,466.91/70,911.23
  6. Step 6: Final answer
    x = 31,494.88

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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.