Finding the Fourth Proportional to 88,403.64, 121,997.25 and 48,117.73
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Solution
The fourth proportional to 88,403.64, 121,997.25 and 48,117.73 is: 66,402.59
Step by Step Solution
- Step 1: Write the proportion equation
88,403.64 : 121,997.25 = 48,117.73 : x - Step 2: Convert to fraction form
88,403.64/121,997.25 = 48,117.73/x - Step 3: Cross multiply
88,403.64x = 121,997.25 × 48,117.73 - Step 4: Simplify right side
88,403.64x = 5,870,230,736.24 - Step 5: Solve for x
x = 5,870,230,736.24/88,403.64 - Step 6: Final answer
x = 66,402.59
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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.