Finding the Fourth Proportional to 88,364.68, 121,939.60 and 48,078.60
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Solution
The fourth proportional to 88,364.68, 121,939.60 and 48,078.60 is: 66,346.47
Step by Step Solution
- Step 1: Write the proportion equation
88,364.68 : 121,939.60 = 48,078.60 : x - Step 2: Convert to fraction form
88,364.68/121,939.60 = 48,078.60/x - Step 3: Cross multiply
88,364.68x = 121,939.60 × 48,078.60 - Step 4: Simplify right side
88,364.68x = 5,862,684,522.67 - Step 5: Solve for x
x = 5,862,684,522.67/88,364.68 - Step 6: Final answer
x = 66,346.47
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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.