Finding the Fourth Proportional to 79,362.19, 109,519.49 and 43,552.79
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Solution
The fourth proportional to 79,362.19, 109,519.49 and 43,552.79 is: 60,102.66
Step by Step Solution
- Step 1: Write the proportion equation
79,362.19 : 109,519.49 = 43,552.79 : x - Step 2: Convert to fraction form
79,362.19/109,519.49 = 43,552.79/x - Step 3: Cross multiply
79,362.19x = 109,519.49 × 43,552.79 - Step 4: Simplify right side
79,362.19x = 4,769,878,910.16 - Step 5: Solve for x
x = 4,769,878,910.16/79,362.19 - Step 6: Final answer
x = 60,102.66
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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.