Finding the Fourth Proportional to 102,639.78, 153,963.99 and 32,517.54
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Solution
The fourth proportional to 102,639.78, 153,963.99 and 32,517.54 is: 48,777.68
Step by Step Solution
- Step 1: Write the proportion equation
102,639.78 : 153,963.99 = 32,517.54 : x - Step 2: Convert to fraction form
102,639.78/153,963.99 = 32,517.54/x - Step 3: Cross multiply
102,639.78x = 153,963.99 × 32,517.54 - Step 4: Simplify right side
102,639.78x = 5,006,530,203.38 - Step 5: Solve for x
x = 5,006,530,203.38/102,639.78 - Step 6: Final answer
x = 48,777.68
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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.