Home / 69,961.99-104,912.10-20,030.76

Finding the Fourth Proportional to 69,961.99, 104,912.10 and 20,030.76

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Solution

The fourth proportional to 69,961.99, 104,912.10 and 20,030.76 is: 30,037.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,961.99 : 104,912.10 = 20,030.76 : x
  2. Step 2: Convert to fraction form
    69,961.99/104,912.10 = 20,030.76/x
  3. Step 3: Cross multiply
    69,961.99x = 104,912.10 × 20,030.76
  4. Step 4: Simplify right side
    69,961.99x = 2,101,468,571.64
  5. Step 5: Solve for x
    x = 2,101,468,571.64/69,961.99
  6. Step 6: Final answer
    x = 30,037.29

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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.