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Finding the Fourth Proportional to 69,405.60, 104,108.04 and 16,815.09

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Solution

The fourth proportional to 69,405.60, 104,108.04 and 16,815.09 is: 25,222.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,405.60 : 104,108.04 = 16,815.09 : x
  2. Step 2: Convert to fraction form
    69,405.60/104,108.04 = 16,815.09/x
  3. Step 3: Cross multiply
    69,405.60x = 104,108.04 × 16,815.09
  4. Step 4: Simplify right side
    69,405.60x = 1,750,586,062.32
  5. Step 5: Solve for x
    x = 1,750,586,062.32/69,405.60
  6. Step 6: Final answer
    x = 25,222.55

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1.5x scale

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.