Finding the Fourth Proportional to 84,396.16, 126,589.68 and 42,842.08
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Solution
The fourth proportional to 84,396.16, 126,589.68 and 42,842.08 is: 64,260.81
Step by Step Solution
- Step 1: Write the proportion equation
84,396.16 : 126,589.68 = 42,842.08 : x - Step 2: Convert to fraction form
84,396.16/126,589.68 = 42,842.08/x - Step 3: Cross multiply
84,396.16x = 126,589.68 × 42,842.08 - Step 4: Simplify right side
84,396.16x = 5,423,365,197.73 - Step 5: Solve for x
x = 5,423,365,197.73/84,396.16 - Step 6: Final answer
x = 64,260.81
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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.