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Finding the Fourth Proportional to 66,600, 99,900 and 17,352

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Solution

The fourth proportional to 66,600, 99,900 and 17,352 is: 26,028

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,600 : 99,900 = 17,352 : x
  2. Step 2: Convert to fraction form
    66,600/99,900 = 17,352/x
  3. Step 3: Cross multiply
    66,600x = 99,900 × 17,352
  4. Step 4: Simplify right side
    66,600x = 1,733,464,800
  5. Step 5: Solve for x
    x = 1,733,464,800/66,600
  6. Step 6: Final answer
    x = 26,028

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.