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Finding the Fourth Proportional to 69,507.81, 104,262.12 and 19,588.32

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Solution

The fourth proportional to 69,507.81, 104,262.12 and 19,588.32 is: 29,382.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,507.81 : 104,262.12 = 19,588.32 : x
  2. Step 2: Convert to fraction form
    69,507.81/104,262.12 = 19,588.32/x
  3. Step 3: Cross multiply
    69,507.81x = 104,262.12 × 19,588.32
  4. Step 4: Simplify right side
    69,507.81x = 2,042,319,770.44
  5. Step 5: Solve for x
    x = 2,042,319,770.44/69,507.81
  6. Step 6: Final answer
    x = 29,382.59

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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.