Home / 69,728.24-104,593.68-19,808.55

Finding the Fourth Proportional to 69,728.24, 104,593.68 and 19,808.55

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Solution

The fourth proportional to 69,728.24, 104,593.68 and 19,808.55 is: 29,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,728.24 : 104,593.68 = 19,808.55 : x
  2. Step 2: Convert to fraction form
    69,728.24/104,593.68 = 19,808.55/x
  3. Step 3: Cross multiply
    69,728.24x = 104,593.68 × 19,808.55
  4. Step 4: Simplify right side
    69,728.24x = 2,071,849,139.96
  5. Step 5: Solve for x
    x = 2,071,849,139.96/69,728.24
  6. Step 6: Final answer
    x = 29,713.20

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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.