Finding the Fourth Proportional to 74,609.93, 102,958.52 and 40,617.69
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Solution
The fourth proportional to 74,609.93, 102,958.52 and 40,617.69 is: 56,050.68
Step by Step Solution
- Step 1: Write the proportion equation
74,609.93 : 102,958.52 = 40,617.69 : x - Step 2: Convert to fraction form
74,609.93/102,958.52 = 40,617.69/x - Step 3: Cross multiply
74,609.93x = 102,958.52 × 40,617.69 - Step 4: Simplify right side
74,609.93x = 4,181,937,045.13 - Step 5: Solve for x
x = 4,181,937,045.13/74,609.93 - Step 6: Final answer
x = 56,050.68
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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.