Finding the Fourth Proportional to 68,142.16, 102,229.68 and 21,395.02
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Solution
The fourth proportional to 68,142.16, 102,229.68 and 21,395.02 is: 32,097.69
Step by Step Solution
- Step 1: Write the proportion equation
68,142.16 : 102,229.68 = 21,395.02 : x - Step 2: Convert to fraction form
68,142.16/102,229.68 = 21,395.02/x - Step 3: Cross multiply
68,142.16x = 102,229.68 × 21,395.02 - Step 4: Simplify right side
68,142.16x = 2,187,206,048.19 - Step 5: Solve for x
x = 2,187,206,048.19/68,142.16 - Step 6: Final answer
x = 32,097.69
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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.