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Finding the Fourth Proportional to 66,017.70, 91,110.69 and 37,717.92

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Solution

The fourth proportional to 66,017.70, 91,110.69 and 37,717.92 is: 52,054.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,017.70 : 91,110.69 = 37,717.92 : x
  2. Step 2: Convert to fraction form
    66,017.70/91,110.69 = 37,717.92/x
  3. Step 3: Cross multiply
    66,017.70x = 91,110.69 × 37,717.92
  4. Step 4: Simplify right side
    66,017.70x = 3,436,505,716.56
  5. Step 5: Solve for x
    x = 3,436,505,716.56/66,017.70
  6. Step 6: Final answer
    x = 52,054.31

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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.