Finding the Fourth Proportional to 68,140.08, 102,214.44 and 21,394.80
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Solution
The fourth proportional to 68,140.08, 102,214.44 and 21,394.80 is: 32,093.56
Step by Step Solution
- Step 1: Write the proportion equation
68,140.08 : 102,214.44 = 21,394.80 : x - Step 2: Convert to fraction form
68,140.08/102,214.44 = 21,394.80/x - Step 3: Cross multiply
68,140.08x = 102,214.44 × 21,394.80 - Step 4: Simplify right side
68,140.08x = 2,186,857,500.91 - Step 5: Solve for x
x = 2,186,857,500.91/68,140.08 - Step 6: Final answer
x = 32,093.56
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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.