Finding the Fourth Proportional to 87,877.49, 121,283.00 and 53,879.96
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Solution
The fourth proportional to 87,877.49, 121,283.00 and 53,879.96 is: 74,361.74
Step by Step Solution
- Step 1: Write the proportion equation
87,877.49 : 121,283.00 = 53,879.96 : x - Step 2: Convert to fraction form
87,877.49/121,283.00 = 53,879.96/x - Step 3: Cross multiply
87,877.49x = 121,283.00 × 53,879.96 - Step 4: Simplify right side
87,877.49x = 6,534,722,919.28 - Step 5: Solve for x
x = 6,534,722,919.28/87,877.49 - Step 6: Final answer
x = 74,361.74
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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.