Finding the Fourth Proportional to 75,310.22, 112,787.21 and 65,395.62
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Solution
The fourth proportional to 75,310.22, 112,787.21 and 65,395.62 is: 97,938.76
Step by Step Solution
- Step 1: Write the proportion equation
75,310.22 : 112,787.21 = 65,395.62 : x - Step 2: Convert to fraction form
75,310.22/112,787.21 = 65,395.62/x - Step 3: Cross multiply
75,310.22x = 112,787.21 × 65,395.62 - Step 4: Simplify right side
75,310.22x = 7,375,789,199.04 - Step 5: Solve for x
x = 7,375,789,199.04/75,310.22 - Step 6: Final answer
x = 97,938.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.