Finding the Fourth Proportional to 68,336.19, 102,508.61 and 28,888.11
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Solution
The fourth proportional to 68,336.19, 102,508.61 and 28,888.11 is: 43,333.99
Step by Step Solution
- Step 1: Write the proportion equation
68,336.19 : 102,508.61 = 28,888.11 : x - Step 2: Convert to fraction form
68,336.19/102,508.61 = 28,888.11/x - Step 3: Cross multiply
68,336.19x = 102,508.61 × 28,888.11 - Step 4: Simplify right side
68,336.19x = 2,961,279,857.19 - Step 5: Solve for x
x = 2,961,279,857.19/68,336.19 - Step 6: Final answer
x = 43,333.99
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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.