Finding the Fourth Proportional to 75,135.08, 103,687.69 and 41,143.03
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Solution
The fourth proportional to 75,135.08, 103,687.69 and 41,143.03 is: 56,778.08
Step by Step Solution
- Step 1: Write the proportion equation
75,135.08 : 103,687.69 = 41,143.03 : x - Step 2: Convert to fraction form
75,135.08/103,687.69 = 41,143.03/x - Step 3: Cross multiply
75,135.08x = 103,687.69 × 41,143.03 - Step 4: Simplify right side
75,135.08x = 4,266,025,740.30 - Step 5: Solve for x
x = 4,266,025,740.30/75,135.08 - Step 6: Final answer
x = 56,778.08
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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.