Finding the Fourth Proportional to 88,731.09, 122,451.80 and 48,447.92
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Solution
The fourth proportional to 88,731.09, 122,451.80 and 48,447.92 is: 66,859.70
Step by Step Solution
- Step 1: Write the proportion equation
88,731.09 : 122,451.80 = 48,447.92 : x - Step 2: Convert to fraction form
88,731.09/122,451.80 = 48,447.92/x - Step 3: Cross multiply
88,731.09x = 122,451.80 × 48,447.92 - Step 4: Simplify right side
88,731.09x = 5,932,534,155.76 - Step 5: Solve for x
x = 5,932,534,155.76/88,731.09 - Step 6: Final answer
x = 66,859.70
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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.