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Finding the Fourth Proportional to 66,452.93, 99,662.28 and 19,694.87

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Solution

The fourth proportional to 66,452.93, 99,662.28 and 19,694.87 is: 29,537.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,452.93 : 99,662.28 = 19,694.87 : x
  2. Step 2: Convert to fraction form
    66,452.93/99,662.28 = 19,694.87/x
  3. Step 3: Cross multiply
    66,452.93x = 99,662.28 × 19,694.87
  4. Step 4: Simplify right side
    66,452.93x = 1,962,835,648.50
  5. Step 5: Solve for x
    x = 1,962,835,648.50/66,452.93
  6. Step 6: Final answer
    x = 29,537.23

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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.