Finding the Fourth Proportional to 79,668.21, 119,576.16 and 40,253.07
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Solution
The fourth proportional to 79,668.21, 119,576.16 and 40,253.07 is: 60,416.92
Step by Step Solution
- Step 1: Write the proportion equation
79,668.21 : 119,576.16 = 40,253.07 : x - Step 2: Convert to fraction form
79,668.21/119,576.16 = 40,253.07/x - Step 3: Cross multiply
79,668.21x = 119,576.16 × 40,253.07 - Step 4: Simplify right side
79,668.21x = 4,813,307,538.81 - Step 5: Solve for x
x = 4,813,307,538.81/79,668.21 - Step 6: Final answer
x = 60,416.92
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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.