Finding the Fourth Proportional to 74,287.52, 102,516.16 and 40,295.68
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Solution
The fourth proportional to 74,287.52, 102,516.16 and 40,295.68 is: 55,607.70
Step by Step Solution
- Step 1: Write the proportion equation
74,287.52 : 102,516.16 = 40,295.68 : x - Step 2: Convert to fraction form
74,287.52/102,516.16 = 40,295.68/x - Step 3: Cross multiply
74,287.52x = 102,516.16 × 40,295.68 - Step 4: Simplify right side
74,287.52x = 4,130,958,378.19 - Step 5: Solve for x
x = 4,130,958,378.19/74,287.52 - Step 6: Final answer
x = 55,607.70
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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.