Finding the Fourth Proportional to 79,550.24, 109,782.15 and 43,742.99
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Solution
The fourth proportional to 79,550.24, 109,782.15 and 43,742.99 is: 60,366.88
Step by Step Solution
- Step 1: Write the proportion equation
79,550.24 : 109,782.15 = 43,742.99 : x - Step 2: Convert to fraction form
79,550.24/109,782.15 = 43,742.99/x - Step 3: Cross multiply
79,550.24x = 109,782.15 × 43,742.99 - Step 4: Simplify right side
79,550.24x = 4,802,199,489.63 - Step 5: Solve for x
x = 4,802,199,489.63/79,550.24 - Step 6: Final answer
x = 60,366.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.