Finding the Fourth Proportional to 88,213.36, 121,739.88 and 50,486.80
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Solution
The fourth proportional to 88,213.36, 121,739.88 and 50,486.80 is: 69,674.90
Step by Step Solution
- Step 1: Write the proportion equation
88,213.36 : 121,739.88 = 50,486.80 : x - Step 2: Convert to fraction form
88,213.36/121,739.88 = 50,486.80/x - Step 3: Cross multiply
88,213.36x = 121,739.88 × 50,486.80 - Step 4: Simplify right side
88,213.36x = 6,146,256,973.58 - Step 5: Solve for x
x = 6,146,256,973.58/88,213.36 - Step 6: Final answer
x = 69,674.90
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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.