Finding the Fourth Proportional to 86,402.22, 129,621.42 and 36,482.46
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Solution
The fourth proportional to 86,402.22, 129,621.42 and 36,482.46 is: 54,731.33
Step by Step Solution
- Step 1: Write the proportion equation
86,402.22 : 129,621.42 = 36,482.46 : x - Step 2: Convert to fraction form
86,402.22/129,621.42 = 36,482.46/x - Step 3: Cross multiply
86,402.22x = 129,621.42 × 36,482.46 - Step 4: Simplify right side
86,402.22x = 4,728,908,270.29 - Step 5: Solve for x
x = 4,728,908,270.29/86,402.22 - Step 6: Final answer
x = 54,731.33
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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.