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Finding the Fourth Proportional to 69,376.65, 104,064.84 and 53,604.60

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Solution

The fourth proportional to 69,376.65, 104,064.84 and 53,604.60 is: 80,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,376.65 : 104,064.84 = 53,604.60 : x
  2. Step 2: Convert to fraction form
    69,376.65/104,064.84 = 53,604.60/x
  3. Step 3: Cross multiply
    69,376.65x = 104,064.84 × 53,604.60
  4. Step 4: Simplify right side
    69,376.65x = 5,578,354,122.26
  5. Step 5: Solve for x
    x = 5,578,354,122.26/69,376.65
  6. Step 6: Final answer
    x = 80,406.80

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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.