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Finding the Fourth Proportional to 69,251.40, 103,866.24 and 19,326.24

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Solution

The fourth proportional to 69,251.40, 103,866.24 and 19,326.24 is: 28,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,251.40 : 103,866.24 = 19,326.24 : x
  2. Step 2: Convert to fraction form
    69,251.40/103,866.24 = 19,326.24/x
  3. Step 3: Cross multiply
    69,251.40x = 103,866.24 × 19,326.24
  4. Step 4: Simplify right side
    69,251.40x = 2,007,343,882.14
  5. Step 5: Solve for x
    x = 2,007,343,882.14/69,251.40
  6. Step 6: Final answer
    x = 28,986.33

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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.