Finding the Fourth Proportional to 88,915.16, 122,701.20 and 48,628.80
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Solution
The fourth proportional to 88,915.16, 122,701.20 and 48,628.80 is: 67,106.80
Step by Step Solution
- Step 1: Write the proportion equation
88,915.16 : 122,701.20 = 48,628.80 : x - Step 2: Convert to fraction form
88,915.16/122,701.20 = 48,628.80/x - Step 3: Cross multiply
88,915.16x = 122,701.20 × 48,628.80 - Step 4: Simplify right side
88,915.16x = 5,966,812,114.56 - Step 5: Solve for x
x = 5,966,812,114.56/88,915.16 - Step 6: Final answer
x = 67,106.80
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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.