Finding the Fourth Proportional to 79,458.23, 109,646.96 and 43,649.75
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Solution
The fourth proportional to 79,458.23, 109,646.96 and 43,649.75 is: 60,233.69
Step by Step Solution
- Step 1: Write the proportion equation
79,458.23 : 109,646.96 = 43,649.75 : x - Step 2: Convert to fraction form
79,458.23/109,646.96 = 43,649.75/x - Step 3: Cross multiply
79,458.23x = 109,646.96 × 43,649.75 - Step 4: Simplify right side
79,458.23x = 4,786,062,448.13 - Step 5: Solve for x
x = 4,786,062,448.13/79,458.23 - Step 6: Final answer
x = 60,233.69
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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.