Finding the Fourth Proportional to 79,506.74, 109,716.99 and 45,514.08
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Solution
The fourth proportional to 79,506.74, 109,716.99 and 45,514.08 is: 62,808.11
Step by Step Solution
- Step 1: Write the proportion equation
79,506.74 : 109,716.99 = 45,514.08 : x - Step 2: Convert to fraction form
79,506.74/109,716.99 = 45,514.08/x - Step 3: Cross multiply
79,506.74x = 109,716.99 × 45,514.08 - Step 4: Simplify right side
79,506.74x = 4,993,667,860.22 - Step 5: Solve for x
x = 4,993,667,860.22/79,506.74 - Step 6: Final answer
x = 62,808.11
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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.