Finding the Fourth Proportional to 88,236.91, 121,766.68 and 47,950.68
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Solution
The fourth proportional to 88,236.91, 121,766.68 and 47,950.68 is: 66,171.80
Step by Step Solution
- Step 1: Write the proportion equation
88,236.91 : 121,766.68 = 47,950.68 : x - Step 2: Convert to fraction form
88,236.91/121,766.68 = 47,950.68/x - Step 3: Cross multiply
88,236.91x = 121,766.68 × 47,950.68 - Step 4: Simplify right side
88,236.91x = 5,838,795,107.34 - Step 5: Solve for x
x = 5,838,795,107.34/88,236.91 - Step 6: Final answer
x = 66,171.80
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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.