Finding the Fourth Proportional to 88,311.13, 121,871.66 and 48,027.26
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Solution
The fourth proportional to 88,311.13, 121,871.66 and 48,027.26 is: 66,278.87
Step by Step Solution
- Step 1: Write the proportion equation
88,311.13 : 121,871.66 = 48,027.26 : x - Step 2: Convert to fraction form
88,311.13/121,871.66 = 48,027.26/x - Step 3: Cross multiply
88,311.13x = 121,871.66 × 48,027.26 - Step 4: Simplify right side
88,311.13x = 5,853,161,965.99 - Step 5: Solve for x
x = 5,853,161,965.99/88,311.13 - Step 6: Final answer
x = 66,278.87
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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.