Home / 69,942.24-104,909.04-28,388.16

Finding the Fourth Proportional to 69,942.24, 104,909.04 and 28,388.16

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Solution

The fourth proportional to 69,942.24, 104,909.04 and 28,388.16 is: 42,580.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,942.24 : 104,909.04 = 28,388.16 : x
  2. Step 2: Convert to fraction form
    69,942.24/104,909.04 = 28,388.16/x
  3. Step 3: Cross multiply
    69,942.24x = 104,909.04 × 28,388.16
  4. Step 4: Simplify right side
    69,942.24x = 2,978,174,612.97
  5. Step 5: Solve for x
    x = 2,978,174,612.97/69,942.24
  6. Step 6: Final answer
    x = 42,580.49

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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.