Finding the Fourth Proportional to 84,043.20, 115,991.28 and 48,244.44
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Solution
The fourth proportional to 84,043.20, 115,991.28 and 48,244.44 is: 66,584.02
Step by Step Solution
- Step 1: Write the proportion equation
84,043.20 : 115,991.28 = 48,244.44 : x - Step 2: Convert to fraction form
84,043.20/115,991.28 = 48,244.44/x - Step 3: Cross multiply
84,043.20x = 115,991.28 × 48,244.44 - Step 4: Simplify right side
84,043.20x = 5,595,934,348.48 - Step 5: Solve for x
x = 5,595,934,348.48/84,043.20 - Step 6: Final answer
x = 66,584.02
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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.