Finding the Fourth Proportional to 71,917.57, 107,876.26 and 19,327.06
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Solution
The fourth proportional to 71,917.57, 107,876.26 and 19,327.06 is: 28,990.56
Step by Step Solution
- Step 1: Write the proportion equation
71,917.57 : 107,876.26 = 19,327.06 : x - Step 2: Convert to fraction form
71,917.57/107,876.26 = 19,327.06/x - Step 3: Cross multiply
71,917.57x = 107,876.26 × 19,327.06 - Step 4: Simplify right side
71,917.57x = 2,084,930,393.08 - Step 5: Solve for x
x = 2,084,930,393.08/71,917.57 - Step 6: Final answer
x = 28,990.56
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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.