Finding the Fourth Proportional to 71,815.14, 107,722.56 and 19,224.66
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Solution
The fourth proportional to 71,815.14, 107,722.56 and 19,224.66 is: 28,836.95
Step by Step Solution
- Step 1: Write the proportion equation
71,815.14 : 107,722.56 = 19,224.66 : x - Step 2: Convert to fraction form
71,815.14/107,722.56 = 19,224.66/x - Step 3: Cross multiply
71,815.14x = 107,722.56 × 19,224.66 - Step 4: Simplify right side
71,815.14x = 2,070,929,590.33 - Step 5: Solve for x
x = 2,070,929,590.33/71,815.14 - Step 6: Final answer
x = 28,836.95
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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.