Finding the Fourth Proportional to 74,603.26, 102,952.20 and 40,613.64
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Solution
The fourth proportional to 74,603.26, 102,952.20 and 40,613.64 is: 56,046.65
Step by Step Solution
- Step 1: Write the proportion equation
74,603.26 : 102,952.20 = 40,613.64 : x - Step 2: Convert to fraction form
74,603.26/102,952.20 = 40,613.64/x - Step 3: Cross multiply
74,603.26x = 102,952.20 × 40,613.64 - Step 4: Simplify right side
74,603.26x = 4,181,263,073.25 - Step 5: Solve for x
x = 4,181,263,073.25/74,603.26 - Step 6: Final answer
x = 56,046.65
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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.