Finding the Fourth Proportional to 88,234.47, 121,743.90 and 49,990.68
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Solution
The fourth proportional to 88,234.47, 121,743.90 and 49,990.68 is: 68,975.99
Step by Step Solution
- Step 1: Write the proportion equation
88,234.47 : 121,743.90 = 49,990.68 : x - Step 2: Convert to fraction form
88,234.47/121,743.90 = 49,990.68/x - Step 3: Cross multiply
88,234.47x = 121,743.90 × 49,990.68 - Step 4: Simplify right side
88,234.47x = 6,086,060,346.85 - Step 5: Solve for x
x = 6,086,060,346.85/88,234.47 - Step 6: Final answer
x = 68,975.99
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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.