Finding the Fourth Proportional to 76,839.48, 115,279.74 and 24,249.96
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Solution
The fourth proportional to 76,839.48, 115,279.74 and 24,249.96 is: 36,381.42
Step by Step Solution
- Step 1: Write the proportion equation
76,839.48 : 115,279.74 = 24,249.96 : x - Step 2: Convert to fraction form
76,839.48/115,279.74 = 24,249.96/x - Step 3: Cross multiply
76,839.48x = 115,279.74 × 24,249.96 - Step 4: Simplify right side
76,839.48x = 2,795,529,083.81 - Step 5: Solve for x
x = 2,795,529,083.81/76,839.48 - Step 6: Final answer
x = 36,381.42
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.