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Finding the Fourth Proportional to 66,526, 91,806 and 36,718

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Solution

The fourth proportional to 66,526, 91,806 and 36,718 is: 50,670.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,526 : 91,806 = 36,718 : x
  2. Step 2: Convert to fraction form
    66,526/91,806 = 36,718/x
  3. Step 3: Cross multiply
    66,526x = 91,806 × 36,718
  4. Step 4: Simplify right side
    66,526x = 3,370,932,708
  5. Step 5: Solve for x
    x = 3,370,932,708/66,526
  6. Step 6: Final answer
    x = 50,670.91

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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.