Finding the Fourth Proportional to 85,771.62, 128,650.95 and 23,446.98
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Solution
The fourth proportional to 85,771.62, 128,650.95 and 23,446.98 is: 35,168.70
Step by Step Solution
- Step 1: Write the proportion equation
85,771.62 : 128,650.95 = 23,446.98 : x - Step 2: Convert to fraction form
85,771.62/128,650.95 = 23,446.98/x - Step 3: Cross multiply
85,771.62x = 128,650.95 × 23,446.98 - Step 4: Simplify right side
85,771.62x = 3,016,476,251.63 - Step 5: Solve for x
x = 3,016,476,251.63/85,771.62 - Step 6: Final answer
x = 35,168.70
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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.