Finding the Fourth Proportional to 68,270.19, 102,417.02 and 20,884.14
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Solution
The fourth proportional to 68,270.19, 102,417.02 and 20,884.14 is: 31,329.80
Step by Step Solution
- Step 1: Write the proportion equation
68,270.19 : 102,417.02 = 20,884.14 : x - Step 2: Convert to fraction form
68,270.19/102,417.02 = 20,884.14/x - Step 3: Cross multiply
68,270.19x = 102,417.02 × 20,884.14 - Step 4: Simplify right side
68,270.19x = 2,138,891,384.06 - Step 5: Solve for x
x = 2,138,891,384.06/68,270.19 - Step 6: Final answer
x = 31,329.80
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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.