Finding the Fourth Proportional to 68,344.19, 102,519.37 and 20,955.82
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Solution
The fourth proportional to 68,344.19, 102,519.37 and 20,955.82 is: 31,434.68
Step by Step Solution
- Step 1: Write the proportion equation
68,344.19 : 102,519.37 = 20,955.82 : x - Step 2: Convert to fraction form
68,344.19/102,519.37 = 20,955.82/x - Step 3: Cross multiply
68,344.19x = 102,519.37 × 20,955.82 - Step 4: Simplify right side
68,344.19x = 2,148,377,464.23 - Step 5: Solve for x
x = 2,148,377,464.23/68,344.19 - Step 6: Final answer
x = 31,434.68
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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.