Finding the Fourth Proportional to 75,743.10, 113,485.05 and 48,008.70
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Solution
The fourth proportional to 75,743.10, 113,485.05 and 48,008.70 is: 71,930.90
Step by Step Solution
- Step 1: Write the proportion equation
75,743.10 : 113,485.05 = 48,008.70 : x - Step 2: Convert to fraction form
75,743.10/113,485.05 = 48,008.70/x - Step 3: Cross multiply
75,743.10x = 113,485.05 × 48,008.70 - Step 4: Simplify right side
75,743.10x = 5,448,269,719.94 - Step 5: Solve for x
x = 5,448,269,719.94/75,743.10 - Step 6: Final answer
x = 71,930.90
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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.