Home / 66,218.38-91,381.70-36,003.94

Finding the Fourth Proportional to 66,218.38, 91,381.70 and 36,003.94

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Solution

The fourth proportional to 66,218.38, 91,381.70 and 36,003.94 is: 49,685.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,218.38 : 91,381.70 = 36,003.94 : x
  2. Step 2: Convert to fraction form
    66,218.38/91,381.70 = 36,003.94/x
  3. Step 3: Cross multiply
    66,218.38x = 91,381.70 × 36,003.94
  4. Step 4: Simplify right side
    66,218.38x = 3,290,100,606.97
  5. Step 5: Solve for x
    x = 3,290,100,606.97/66,218.38
  6. Step 6: Final answer
    x = 49,685.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.