Home / 66,696.21-100,072.40-29,236.95

Finding the Fourth Proportional to 66,696.21, 100,072.40 and 29,236.95

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Solution

The fourth proportional to 66,696.21, 100,072.40 and 29,236.95 is: 43,867.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,696.21 : 100,072.40 = 29,236.95 : x
  2. Step 2: Convert to fraction form
    66,696.21/100,072.40 = 29,236.95/x
  3. Step 3: Cross multiply
    66,696.21x = 100,072.40 × 29,236.95
  4. Step 4: Simplify right side
    66,696.21x = 2,925,811,609.00
  5. Step 5: Solve for x
    x = 2,925,811,609.00/66,696.21
  6. Step 6: Final answer
    x = 43,867.73

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Why These Related Problems?

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