Finding the Fourth Proportional to 74,167.19, 102,351.21 and 40,175.68
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Solution
The fourth proportional to 74,167.19, 102,351.21 and 40,175.68 is: 55,442.70
Step by Step Solution
- Step 1: Write the proportion equation
74,167.19 : 102,351.21 = 40,175.68 : x - Step 2: Convert to fraction form
74,167.19/102,351.21 = 40,175.68/x - Step 3: Cross multiply
74,167.19x = 102,351.21 × 40,175.68 - Step 4: Simplify right side
74,167.19x = 4,112,029,460.57 - Step 5: Solve for x
x = 4,112,029,460.57/74,167.19 - Step 6: Final answer
x = 55,442.70
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1.5x scale
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.