Finding the Fourth Proportional to 79,359.99, 109,516.49 and 43,550.60
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Solution
The fourth proportional to 79,359.99, 109,516.49 and 43,550.60 is: 60,099.66
Step by Step Solution
- Step 1: Write the proportion equation
79,359.99 : 109,516.49 = 43,550.60 : x - Step 2: Convert to fraction form
79,359.99/109,516.49 = 43,550.60/x - Step 3: Cross multiply
79,359.99x = 109,516.49 × 43,550.60 - Step 4: Simplify right side
79,359.99x = 4,769,508,084.06 - Step 5: Solve for x
x = 4,769,508,084.06/79,359.99 - Step 6: Final answer
x = 60,099.66
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1.5x scale
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.