Finding the Fourth Proportional to 68,935.92, 103,455.36 and 51,207.54
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Solution
The fourth proportional to 68,935.92, 103,455.36 and 51,207.54 is: 76,849.55
Step by Step Solution
- Step 1: Write the proportion equation
68,935.92 : 103,455.36 = 51,207.54 : x - Step 2: Convert to fraction form
68,935.92/103,455.36 = 51,207.54/x - Step 3: Cross multiply
68,935.92x = 103,455.36 × 51,207.54 - Step 4: Simplify right side
68,935.92x = 5,297,694,485.41 - Step 5: Solve for x
x = 5,297,694,485.41/68,935.92 - Step 6: Final answer
x = 76,849.55
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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.