Finding the Fourth Proportional to 84,986.75, 117,274.57 and 49,179.08
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Solution
The fourth proportional to 84,986.75, 117,274.57 and 49,179.08 is: 67,863.00
Step by Step Solution
- Step 1: Write the proportion equation
84,986.75 : 117,274.57 = 49,179.08 : x - Step 2: Convert to fraction form
84,986.75/117,274.57 = 49,179.08/x - Step 3: Cross multiply
84,986.75x = 117,274.57 × 49,179.08 - Step 4: Simplify right side
84,986.75x = 5,767,455,630.23 - Step 5: Solve for x
x = 5,767,455,630.23/84,986.75 - Step 6: Final answer
x = 67,863.00
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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.