Finding the Fourth Proportional to 74,560.87, 102,896.36 and 42,739.75
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Solution
The fourth proportional to 74,560.87, 102,896.36 and 42,739.75 is: 58,982.21
Step by Step Solution
- Step 1: Write the proportion equation
74,560.87 : 102,896.36 = 42,739.75 : x - Step 2: Convert to fraction form
74,560.87/102,896.36 = 42,739.75/x - Step 3: Cross multiply
74,560.87x = 102,896.36 × 42,739.75 - Step 4: Simplify right side
74,560.87x = 4,397,764,702.31 - Step 5: Solve for x
x = 4,397,764,702.31/74,560.87 - Step 6: Final answer
x = 58,982.21
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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.