Finding the Fourth Proportional to 91,219.36, 136,832.88 and 28,888.48
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Solution
The fourth proportional to 91,219.36, 136,832.88 and 28,888.48 is: 43,333.94
Step by Step Solution
- Step 1: Write the proportion equation
91,219.36 : 136,832.88 = 28,888.48 : x - Step 2: Convert to fraction form
91,219.36/136,832.88 = 28,888.48/x - Step 3: Cross multiply
91,219.36x = 136,832.88 × 28,888.48 - Step 4: Simplify right side
91,219.36x = 3,952,893,917.22 - Step 5: Solve for x
x = 3,952,893,917.22/91,219.36 - Step 6: Final answer
x = 43,333.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.