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Finding the Fourth Proportional to 67,571.97, 101,382.09 and 30,128.68

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Solution

The fourth proportional to 67,571.97, 101,382.09 and 30,128.68 is: 45,203.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,571.97 : 101,382.09 = 30,128.68 : x
  2. Step 2: Convert to fraction form
    67,571.97/101,382.09 = 30,128.68/x
  3. Step 3: Cross multiply
    67,571.97x = 101,382.09 × 30,128.68
  4. Step 4: Simplify right side
    67,571.97x = 3,054,508,547.34
  5. Step 5: Solve for x
    x = 3,054,508,547.34/67,571.97
  6. Step 6: Final answer
    x = 45,203.78

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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.