Home / 69,821.03-104,715.76-19,900.06

Finding the Fourth Proportional to 69,821.03, 104,715.76 and 19,900.06

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Solution

The fourth proportional to 69,821.03, 104,715.76 and 19,900.06 is: 29,845.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,821.03 : 104,715.76 = 19,900.06 : x
  2. Step 2: Convert to fraction form
    69,821.03/104,715.76 = 19,900.06/x
  3. Step 3: Cross multiply
    69,821.03x = 104,715.76 × 19,900.06
  4. Step 4: Simplify right side
    69,821.03x = 2,083,849,906.95
  5. Step 5: Solve for x
    x = 2,083,849,906.95/69,821.03
  6. Step 6: Final answer
    x = 29,845.59

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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.