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Finding the Fourth Proportional to 66,765.50, 100,145.63 and 16,844.97

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Solution

The fourth proportional to 66,765.50, 100,145.63 and 16,844.97 is: 25,266.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,765.50 : 100,145.63 = 16,844.97 : x
  2. Step 2: Convert to fraction form
    66,765.50/100,145.63 = 16,844.97/x
  3. Step 3: Cross multiply
    66,765.50x = 100,145.63 × 16,844.97
  4. Step 4: Simplify right side
    66,765.50x = 1,686,950,048.76
  5. Step 5: Solve for x
    x = 1,686,950,048.76/66,765.50
  6. Step 6: Final answer
    x = 25,266.79

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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.