Finding the Fourth Proportional to 75,072.21, 112,639.70 and 32,930.54
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Solution
The fourth proportional to 75,072.21, 112,639.70 and 32,930.54 is: 49,409.58
Step by Step Solution
- Step 1: Write the proportion equation
75,072.21 : 112,639.70 = 32,930.54 : x - Step 2: Convert to fraction form
75,072.21/112,639.70 = 32,930.54/x - Step 3: Cross multiply
75,072.21x = 112,639.70 × 32,930.54 - Step 4: Simplify right side
75,072.21x = 3,709,286,146.44 - Step 5: Solve for x
x = 3,709,286,146.44/75,072.21 - Step 6: Final answer
x = 49,409.58
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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.