Finding the Fourth Proportional to 68,532.70, 102,750.45 and 31,110.70
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Solution
The fourth proportional to 68,532.70, 102,750.45 and 31,110.70 is: 46,643.99
Step by Step Solution
- Step 1: Write the proportion equation
68,532.70 : 102,750.45 = 31,110.70 : x - Step 2: Convert to fraction form
68,532.70/102,750.45 = 31,110.70/x - Step 3: Cross multiply
68,532.70x = 102,750.45 × 31,110.70 - Step 4: Simplify right side
68,532.70x = 3,196,638,424.82 - Step 5: Solve for x
x = 3,196,638,424.82/68,532.70 - Step 6: Final answer
x = 46,643.99
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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.