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Finding the Fourth Proportional to 66,496.88, 91,759.32 and 36,686.96

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Solution

The fourth proportional to 66,496.88, 91,759.32 and 36,686.96 is: 50,624.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,496.88 : 91,759.32 = 36,686.96 : x
  2. Step 2: Convert to fraction form
    66,496.88/91,759.32 = 36,686.96/x
  3. Step 3: Cross multiply
    66,496.88x = 91,759.32 × 36,686.96
  4. Step 4: Simplify right side
    66,496.88x = 3,366,370,502.47
  5. Step 5: Solve for x
    x = 3,366,370,502.47/66,496.88
  6. Step 6: Final answer
    x = 50,624.49

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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.