Finding the Fourth Proportional to 79,311.66, 118,808.87 and 47,704.26
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Solution
The fourth proportional to 79,311.66, 118,808.87 and 47,704.26 is: 71,460.99
Step by Step Solution
- Step 1: Write the proportion equation
79,311.66 : 118,808.87 = 47,704.26 : x - Step 2: Convert to fraction form
79,311.66/118,808.87 = 47,704.26/x - Step 3: Cross multiply
79,311.66x = 118,808.87 × 47,704.26 - Step 4: Simplify right side
79,311.66x = 5,667,689,431.80 - Step 5: Solve for x
x = 5,667,689,431.80/79,311.66 - Step 6: Final answer
x = 71,460.99
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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.