Finding the Fourth Proportional to 84,538.84, 126,809.50 and 40,170.12
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Solution
The fourth proportional to 84,538.84, 126,809.50 and 40,170.12 is: 60,255.77
Step by Step Solution
- Step 1: Write the proportion equation
84,538.84 : 126,809.50 = 40,170.12 : x - Step 2: Convert to fraction form
84,538.84/126,809.50 = 40,170.12/x - Step 3: Cross multiply
84,538.84x = 126,809.50 × 40,170.12 - Step 4: Simplify right side
84,538.84x = 5,093,952,832.14 - Step 5: Solve for x
x = 5,093,952,832.14/84,538.84 - Step 6: Final answer
x = 60,255.77
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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.