Finding the Fourth Proportional to 79,638.14, 119,511.48 and 32,890.70
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Solution
The fourth proportional to 79,638.14, 119,511.48 and 32,890.70 is: 49,358.46
Step by Step Solution
- Step 1: Write the proportion equation
79,638.14 : 119,511.48 = 32,890.70 : x - Step 2: Convert to fraction form
79,638.14/119,511.48 = 32,890.70/x - Step 3: Cross multiply
79,638.14x = 119,511.48 × 32,890.70 - Step 4: Simplify right side
79,638.14x = 3,930,816,235.24 - Step 5: Solve for x
x = 3,930,816,235.24/79,638.14 - Step 6: Final answer
x = 49,358.46
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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.