Finding the Fourth Proportional to 88,393.68, 121,944.69 and 58,140.18
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Solution
The fourth proportional to 88,393.68, 121,944.69 and 58,140.18 is: 80,208.07
Step by Step Solution
- Step 1: Write the proportion equation
88,393.68 : 121,944.69 = 58,140.18 : x - Step 2: Convert to fraction form
88,393.68/121,944.69 = 58,140.18/x - Step 3: Cross multiply
88,393.68x = 121,944.69 × 58,140.18 - Step 4: Simplify right side
88,393.68x = 7,089,886,226.64 - Step 5: Solve for x
x = 7,089,886,226.64/88,393.68 - Step 6: Final answer
x = 80,208.07
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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.