Finding the Fourth Proportional to 79,593.41, 109,734.81 and 57,770.09
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Solution
The fourth proportional to 79,593.41, 109,734.81 and 57,770.09 is: 79,647.17
Step by Step Solution
- Step 1: Write the proportion equation
79,593.41 : 109,734.81 = 57,770.09 : x - Step 2: Convert to fraction form
79,593.41/109,734.81 = 57,770.09/x - Step 3: Cross multiply
79,593.41x = 109,734.81 × 57,770.09 - Step 4: Simplify right side
79,593.41x = 6,339,389,849.83 - Step 5: Solve for x
x = 6,339,389,849.83/79,593.41 - Step 6: Final answer
x = 79,647.17
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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.