Finding the Fourth Proportional to 88,406.28, 121,998.98 and 48,120.84
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Solution
The fourth proportional to 88,406.28, 121,998.98 and 48,120.84 is: 66,405.84
Step by Step Solution
- Step 1: Write the proportion equation
88,406.28 : 121,998.98 = 48,120.84 : x - Step 2: Convert to fraction form
88,406.28/121,998.98 = 48,120.84/x - Step 3: Cross multiply
88,406.28x = 121,998.98 × 48,120.84 - Step 4: Simplify right side
88,406.28x = 5,870,693,396.74 - Step 5: Solve for x
x = 5,870,693,396.74/88,406.28 - Step 6: Final answer
x = 66,405.84
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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.