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Finding the Fourth Proportional to 66,860.46, 100,297.08 and 18,828.95

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Solution

The fourth proportional to 66,860.46, 100,297.08 and 18,828.95 is: 28,245.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,860.46 : 100,297.08 = 18,828.95 : x
  2. Step 2: Convert to fraction form
    66,860.46/100,297.08 = 18,828.95/x
  3. Step 3: Cross multiply
    66,860.46x = 100,297.08 × 18,828.95
  4. Step 4: Simplify right side
    66,860.46x = 1,888,488,202.98
  5. Step 5: Solve for x
    x = 1,888,488,202.98/66,860.46
  6. Step 6: Final answer
    x = 28,245.22

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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.