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Finding the Fourth Proportional to 66,348, 99,522.36 and 17,100

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Solution

The fourth proportional to 66,348, 99,522.36 and 17,100 is: 25,650.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,348 : 99,522.36 = 17,100 : x
  2. Step 2: Convert to fraction form
    66,348/99,522.36 = 17,100/x
  3. Step 3: Cross multiply
    66,348x = 99,522.36 × 17,100
  4. Step 4: Simplify right side
    66,348x = 1,701,832,356
  5. Step 5: Solve for x
    x = 1,701,832,356/66,348
  6. Step 6: Final answer
    x = 25,650.09

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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.