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Finding the Fourth Proportional to 66,699.54, 100,012.36 and 27,284.32

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Solution

The fourth proportional to 66,699.54, 100,012.36 and 27,284.32 is: 40,911.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,699.54 : 100,012.36 = 27,284.32 : x
  2. Step 2: Convert to fraction form
    66,699.54/100,012.36 = 27,284.32/x
  3. Step 3: Cross multiply
    66,699.54x = 100,012.36 × 27,284.32
  4. Step 4: Simplify right side
    66,699.54x = 2,728,769,234.20
  5. Step 5: Solve for x
    x = 2,728,769,234.20/66,699.54
  6. Step 6: Final answer
    x = 40,911.37

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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.