Finding the Fourth Proportional to 85,388.14, 128,088.35 and 32,797.63
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Solution
The fourth proportional to 85,388.14, 128,088.35 and 32,797.63 is: 49,198.80
Step by Step Solution
- Step 1: Write the proportion equation
85,388.14 : 128,088.35 = 32,797.63 : x - Step 2: Convert to fraction form
85,388.14/128,088.35 = 32,797.63/x - Step 3: Cross multiply
85,388.14x = 128,088.35 × 32,797.63 - Step 4: Simplify right side
85,388.14x = 4,200,993,893.71 - Step 5: Solve for x
x = 4,200,993,893.71/85,388.14 - Step 6: Final answer
x = 49,198.80
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1.5x scale
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.