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Finding the Fourth Proportional to 66,610, 91,928.52 and 36,802

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Solution

The fourth proportional to 66,610, 91,928.52 and 36,802 is: 50,790.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,610 : 91,928.52 = 36,802 : x
  2. Step 2: Convert to fraction form
    66,610/91,928.52 = 36,802/x
  3. Step 3: Cross multiply
    66,610x = 91,928.52 × 36,802
  4. Step 4: Simplify right side
    66,610x = 3,383,153,393.04
  5. Step 5: Solve for x
    x = 3,383,153,393.04/66,610
  6. Step 6: Final answer
    x = 50,790.47

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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.