Finding the Fourth Proportional to 68,489.68, 102,756.48 and 29,079.96
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Solution
The fourth proportional to 68,489.68, 102,756.48 and 29,079.96 is: 43,629.26
Step by Step Solution
- Step 1: Write the proportion equation
68,489.68 : 102,756.48 = 29,079.96 : x - Step 2: Convert to fraction form
68,489.68/102,756.48 = 29,079.96/x - Step 3: Cross multiply
68,489.68x = 102,756.48 × 29,079.96 - Step 4: Simplify right side
68,489.68x = 2,988,154,328.14 - Step 5: Solve for x
x = 2,988,154,328.14/68,489.68 - Step 6: Final answer
x = 43,629.26
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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.