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Finding the Fourth Proportional to 66,880.05, 100,320.26 and 16,960.17

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Solution

The fourth proportional to 66,880.05, 100,320.26 and 16,960.17 is: 25,440.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,880.05 : 100,320.26 = 16,960.17 : x
  2. Step 2: Convert to fraction form
    66,880.05/100,320.26 = 16,960.17/x
  3. Step 3: Cross multiply
    66,880.05x = 100,320.26 × 16,960.17
  4. Step 4: Simplify right side
    66,880.05x = 1,701,448,955.44
  5. Step 5: Solve for x
    x = 1,701,448,955.44/66,880.05
  6. Step 6: Final answer
    x = 25,440.31

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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.