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Finding the Fourth Proportional to 66,349, 99,523.50 and 19,634.68

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Solution

The fourth proportional to 66,349, 99,523.50 and 19,634.68 is: 29,452.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,349 : 99,523.50 = 19,634.68 : x
  2. Step 2: Convert to fraction form
    66,349/99,523.50 = 19,634.68/x
  3. Step 3: Cross multiply
    66,349x = 99,523.50 × 19,634.68
  4. Step 4: Simplify right side
    66,349x = 1,954,112,074.98
  5. Step 5: Solve for x
    x = 1,954,112,074.98/66,349
  6. Step 6: Final answer
    x = 29,452.02

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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.