Finding the Fourth Proportional to 74,055.36, 102,195.97 and 40,063.74
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Solution
The fourth proportional to 74,055.36, 102,195.97 and 40,063.74 is: 55,287.73
Step by Step Solution
- Step 1: Write the proportion equation
74,055.36 : 102,195.97 = 40,063.74 : x - Step 2: Convert to fraction form
74,055.36/102,195.97 = 40,063.74/x - Step 3: Cross multiply
74,055.36x = 102,195.97 × 40,063.74 - Step 4: Simplify right side
74,055.36x = 4,094,352,771.13 - Step 5: Solve for x
x = 4,094,352,771.13/74,055.36 - Step 6: Final answer
x = 55,287.73
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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.