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Finding the Fourth Proportional to 66,907.59, 100,378.26 and 47,224.59

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Solution

The fourth proportional to 66,907.59, 100,378.26 and 47,224.59 is: 70,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,907.59 : 100,378.26 = 47,224.59 : x
  2. Step 2: Convert to fraction form
    66,907.59/100,378.26 = 47,224.59/x
  3. Step 3: Cross multiply
    66,907.59x = 100,378.26 × 47,224.59
  4. Step 4: Simplify right side
    66,907.59x = 4,740,322,173.41
  5. Step 5: Solve for x
    x = 4,740,322,173.41/66,907.59
  6. Step 6: Final answer
    x = 70,848.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.