Finding the Fourth Proportional to 81,975.96, 122,967.99 and 37,582.56
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Solution
The fourth proportional to 81,975.96, 122,967.99 and 37,582.56 is: 56,375.70
Step by Step Solution
- Step 1: Write the proportion equation
81,975.96 : 122,967.99 = 37,582.56 : x - Step 2: Convert to fraction form
81,975.96/122,967.99 = 37,582.56/x - Step 3: Cross multiply
81,975.96x = 122,967.99 × 37,582.56 - Step 4: Simplify right side
81,975.96x = 4,621,451,862.25 - Step 5: Solve for x
x = 4,621,451,862.25/81,975.96 - Step 6: Final answer
x = 56,375.70
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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.