Finding the Fourth Proportional to 88,344.81, 121,915.51 and 48,057.84
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Solution
The fourth proportional to 88,344.81, 121,915.51 and 48,057.84 is: 66,319.64
Step by Step Solution
- Step 1: Write the proportion equation
88,344.81 : 121,915.51 = 48,057.84 : x - Step 2: Convert to fraction form
88,344.81/121,915.51 = 48,057.84/x - Step 3: Cross multiply
88,344.81x = 121,915.51 × 48,057.84 - Step 4: Simplify right side
88,344.81x = 5,858,996,073.10 - Step 5: Solve for x
x = 5,858,996,073.10/88,344.81 - Step 6: Final answer
x = 66,319.64
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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.