Finding the Fourth Proportional to 74,735.66, 103,056.09 and 47,879.30
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Solution
The fourth proportional to 74,735.66, 103,056.09 and 47,879.30 is: 66,022.75
Step by Step Solution
- Step 1: Write the proportion equation
74,735.66 : 103,056.09 = 47,879.30 : x - Step 2: Convert to fraction form
74,735.66/103,056.09 = 47,879.30/x - Step 3: Cross multiply
74,735.66x = 103,056.09 × 47,879.30 - Step 4: Simplify right side
74,735.66x = 4,934,253,449.94 - Step 5: Solve for x
x = 4,934,253,449.94/74,735.66 - Step 6: Final answer
x = 66,022.75
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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.