Home / 69,957.12-104,920.72-20,023.81

Finding the Fourth Proportional to 69,957.12, 104,920.72 and 20,023.81

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Solution

The fourth proportional to 69,957.12, 104,920.72 and 20,023.81 is: 30,031.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,957.12 : 104,920.72 = 20,023.81 : x
  2. Step 2: Convert to fraction form
    69,957.12/104,920.72 = 20,023.81/x
  3. Step 3: Cross multiply
    69,957.12x = 104,920.72 × 20,023.81
  4. Step 4: Simplify right side
    69,957.12x = 2,100,912,562.34
  5. Step 5: Solve for x
    x = 2,100,912,562.34/69,957.12
  6. Step 6: Final answer
    x = 30,031.43

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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.