Finding the Fourth Proportional to 86,170.68, 129,325.14 and 44,629.56
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Solution
The fourth proportional to 86,170.68, 129,325.14 and 44,629.56 is: 66,980.14
Step by Step Solution
- Step 1: Write the proportion equation
86,170.68 : 129,325.14 = 44,629.56 : x - Step 2: Convert to fraction form
86,170.68/129,325.14 = 44,629.56/x - Step 3: Cross multiply
86,170.68x = 129,325.14 × 44,629.56 - Step 4: Simplify right side
86,170.68x = 5,771,724,095.14 - Step 5: Solve for x
x = 5,771,724,095.14/86,170.68 - Step 6: Final answer
x = 66,980.14
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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.