Finding the Fourth Proportional to 68,178.20, 102,239.34 and 23,789.99
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Solution
The fourth proportional to 68,178.20, 102,239.34 and 23,789.99 is: 35,675.22
Step by Step Solution
- Step 1: Write the proportion equation
68,178.20 : 102,239.34 = 23,789.99 : x - Step 2: Convert to fraction form
68,178.20/102,239.34 = 23,789.99/x - Step 3: Cross multiply
68,178.20x = 102,239.34 × 23,789.99 - Step 4: Simplify right side
68,178.20x = 2,432,272,365.01 - Step 5: Solve for x
x = 2,432,272,365.01/68,178.20 - Step 6: Final answer
x = 35,675.22
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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.