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Finding the Fourth Proportional to 66,604.26, 91,920.13 and 36,394.06

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Solution

The fourth proportional to 66,604.26, 91,920.13 and 36,394.06 is: 50,227.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,604.26 : 91,920.13 = 36,394.06 : x
  2. Step 2: Convert to fraction form
    66,604.26/91,920.13 = 36,394.06/x
  3. Step 3: Cross multiply
    66,604.26x = 91,920.13 × 36,394.06
  4. Step 4: Simplify right side
    66,604.26x = 3,345,346,750.34
  5. Step 5: Solve for x
    x = 3,345,346,750.34/66,604.26
  6. Step 6: Final answer
    x = 50,227.22

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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.