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Finding the Fourth Proportional to 66,993.03, 100,358.16 and 38,853.98

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Solution

The fourth proportional to 66,993.03, 100,358.16 and 38,853.98 is: 58,204.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,993.03 : 100,358.16 = 38,853.98 : x
  2. Step 2: Convert to fraction form
    66,993.03/100,358.16 = 38,853.98/x
  3. Step 3: Cross multiply
    66,993.03x = 100,358.16 × 38,853.98
  4. Step 4: Simplify right side
    66,993.03x = 3,899,313,439.69
  5. Step 5: Solve for x
    x = 3,899,313,439.69/66,993.03
  6. Step 6: Final answer
    x = 58,204.76

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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.