Finding the Fourth Proportional to 86,226.11, 129,088.74 and 52,845.20
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Solution
The fourth proportional to 86,226.11, 129,088.74 and 52,845.20 is: 79,114.32
Step by Step Solution
- Step 1: Write the proportion equation
86,226.11 : 129,088.74 = 52,845.20 : x - Step 2: Convert to fraction form
86,226.11/129,088.74 = 52,845.20/x - Step 3: Cross multiply
86,226.11x = 129,088.74 × 52,845.20 - Step 4: Simplify right side
86,226.11x = 6,821,720,283.05 - Step 5: Solve for x
x = 6,821,720,283.05/86,226.11 - Step 6: Final answer
x = 79,114.32
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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.