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Finding the Fourth Proportional to 66,668.60, 100,002.98 and 27,225.71

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Solution

The fourth proportional to 66,668.60, 100,002.98 and 27,225.71 is: 40,838.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,668.60 : 100,002.98 = 27,225.71 : x
  2. Step 2: Convert to fraction form
    66,668.60/100,002.98 = 27,225.71/x
  3. Step 3: Cross multiply
    66,668.60x = 100,002.98 × 27,225.71
  4. Step 4: Simplify right side
    66,668.60x = 2,722,651,496.47
  5. Step 5: Solve for x
    x = 2,722,651,496.47/66,668.60
  6. Step 6: Final answer
    x = 40,838.59

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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.