Finding the Fourth Proportional to 71,952.98, 107,919.74 and 19,365.62
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Solution
The fourth proportional to 71,952.98, 107,919.74 and 19,365.62 is: 29,045.81
Step by Step Solution
- Step 1: Write the proportion equation
71,952.98 : 107,919.74 = 19,365.62 : x - Step 2: Convert to fraction form
71,952.98/107,919.74 = 19,365.62/x - Step 3: Cross multiply
71,952.98x = 107,919.74 × 19,365.62 - Step 4: Simplify right side
71,952.98x = 2,089,932,184.15 - Step 5: Solve for x
x = 2,089,932,184.15/71,952.98 - Step 6: Final answer
x = 29,045.81
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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.