Finding the Fourth Proportional to 84,253.64, 126,338.13 and 28,074.06
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Solution
The fourth proportional to 84,253.64, 126,338.13 and 28,074.06 is: 42,096.99
Step by Step Solution
- Step 1: Write the proportion equation
84,253.64 : 126,338.13 = 28,074.06 : x - Step 2: Convert to fraction form
84,253.64/126,338.13 = 28,074.06/x - Step 3: Cross multiply
84,253.64x = 126,338.13 × 28,074.06 - Step 4: Simplify right side
84,253.64x = 3,546,824,241.91 - Step 5: Solve for x
x = 3,546,824,241.91/84,253.64 - Step 6: Final answer
x = 42,096.99
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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.