Finding the Fourth Proportional to 79,615.72, 119,325.12 and 40,184.08
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Solution
The fourth proportional to 79,615.72, 119,325.12 and 40,184.08 is: 60,226.42
Step by Step Solution
- Step 1: Write the proportion equation
79,615.72 : 119,325.12 = 40,184.08 : x - Step 2: Convert to fraction form
79,615.72/119,325.12 = 40,184.08/x - Step 3: Cross multiply
79,615.72x = 119,325.12 × 40,184.08 - Step 4: Simplify right side
79,615.72x = 4,794,970,168.09 - Step 5: Solve for x
x = 4,794,970,168.09/79,615.72 - Step 6: Final answer
x = 60,226.42
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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.