Finding the Fourth Proportional to 84,236.79, 116,246.70 and 48,433.80
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Solution
The fourth proportional to 84,236.79, 116,246.70 and 48,433.80 is: 66,838.60
Step by Step Solution
- Step 1: Write the proportion equation
84,236.79 : 116,246.70 = 48,433.80 : x - Step 2: Convert to fraction form
84,236.79/116,246.70 = 48,433.80/x - Step 3: Cross multiply
84,236.79x = 116,246.70 × 48,433.80 - Step 4: Simplify right side
84,236.79x = 5,630,269,418.46 - Step 5: Solve for x
x = 5,630,269,418.46/84,236.79 - Step 6: Final answer
x = 66,838.60
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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.