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Finding the Fourth Proportional to 69,969.62, 104,960.08 and 21,934.94

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Solution

The fourth proportional to 69,969.62, 104,960.08 and 21,934.94 is: 32,904.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,969.62 : 104,960.08 = 21,934.94 : x
  2. Step 2: Convert to fraction form
    69,969.62/104,960.08 = 21,934.94/x
  3. Step 3: Cross multiply
    69,969.62x = 104,960.08 × 21,934.94
  4. Step 4: Simplify right side
    69,969.62x = 2,302,293,057.20
  5. Step 5: Solve for x
    x = 2,302,293,057.20/69,969.62
  6. Step 6: Final answer
    x = 32,904.18

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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.