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Finding the Fourth Proportional to 69,895.68, 104,844 and 19,975.44

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Solution

The fourth proportional to 69,895.68, 104,844 and 19,975.44 is: 29,963.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,895.68 : 104,844 = 19,975.44 : x
  2. Step 2: Convert to fraction form
    69,895.68/104,844 = 19,975.44/x
  3. Step 3: Cross multiply
    69,895.68x = 104,844 × 19,975.44
  4. Step 4: Simplify right side
    69,895.68x = 2,094,305,031.36
  5. Step 5: Solve for x
    x = 2,094,305,031.36/69,895.68
  6. Step 6: Final answer
    x = 29,963.30

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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.