Home / 66,218.09-91,380.49-36,003.42

Finding the Fourth Proportional to 66,218.09, 91,380.49 and 36,003.42

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Solution

The fourth proportional to 66,218.09, 91,380.49 and 36,003.42 is: 49,684.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,218.09 : 91,380.49 = 36,003.42 : x
  2. Step 2: Convert to fraction form
    66,218.09/91,380.49 = 36,003.42/x
  3. Step 3: Cross multiply
    66,218.09x = 91,380.49 × 36,003.42
  4. Step 4: Simplify right side
    66,218.09x = 3,290,010,273.79
  5. Step 5: Solve for x
    x = 3,290,010,273.79/66,218.09
  6. Step 6: Final answer
    x = 49,684.46

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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.