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Finding the Fourth Proportional to 66,896.94, 100,332.62 and 33,607.78

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Solution

The fourth proportional to 66,896.94, 100,332.62 and 33,607.78 is: 50,405.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,896.94 : 100,332.62 = 33,607.78 : x
  2. Step 2: Convert to fraction form
    66,896.94/100,332.62 = 33,607.78/x
  3. Step 3: Cross multiply
    66,896.94x = 100,332.62 × 33,607.78
  4. Step 4: Simplify right side
    66,896.94x = 3,371,956,619.78
  5. Step 5: Solve for x
    x = 3,371,956,619.78/66,896.94
  6. Step 6: Final answer
    x = 50,405.24

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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.