Finding the Fourth Proportional to 86,824.62, 119,813.04 and 48,576.78
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Solution
The fourth proportional to 86,824.62, 119,813.04 and 48,576.78 is: 67,033.20
Step by Step Solution
- Step 1: Write the proportion equation
86,824.62 : 119,813.04 = 48,576.78 : x - Step 2: Convert to fraction form
86,824.62/119,813.04 = 48,576.78/x - Step 3: Cross multiply
86,824.62x = 119,813.04 × 48,576.78 - Step 4: Simplify right side
86,824.62x = 5,820,131,685.21 - Step 5: Solve for x
x = 5,820,131,685.21/86,824.62 - Step 6: Final answer
x = 67,033.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.