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Finding the Fourth Proportional to 66,851.40, 100,252.80 and 22,479.60

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Solution

The fourth proportional to 66,851.40, 100,252.80 and 22,479.60 is: 33,711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,851.40 : 100,252.80 = 22,479.60 : x
  2. Step 2: Convert to fraction form
    66,851.40/100,252.80 = 22,479.60/x
  3. Step 3: Cross multiply
    66,851.40x = 100,252.80 × 22,479.60
  4. Step 4: Simplify right side
    66,851.40x = 2,253,642,842.88
  5. Step 5: Solve for x
    x = 2,253,642,842.88/66,851.40
  6. Step 6: Final answer
    x = 33,711.23

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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.