Finding the Fourth Proportional to 84,846.62, 117,342.06 and 74,217.80
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Solution
The fourth proportional to 84,846.62, 117,342.06 and 74,217.80 is: 102,642.50
Step by Step Solution
- Step 1: Write the proportion equation
84,846.62 : 117,342.06 = 74,217.80 : x - Step 2: Convert to fraction form
84,846.62/117,342.06 = 74,217.80/x - Step 3: Cross multiply
84,846.62x = 117,342.06 × 74,217.80 - Step 4: Simplify right side
84,846.62x = 8,708,869,540.67 - Step 5: Solve for x
x = 8,708,869,540.67/84,846.62 - Step 6: Final answer
x = 102,642.50
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1.5x scale
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.