Finding the Fourth Proportional to 74,949.64, 103,427.42 and 40,959.26
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Solution
The fourth proportional to 74,949.64, 103,427.42 and 40,959.26 is: 56,522.09
Step by Step Solution
- Step 1: Write the proportion equation
74,949.64 : 103,427.42 = 40,959.26 : x - Step 2: Convert to fraction form
74,949.64/103,427.42 = 40,959.26/x - Step 3: Cross multiply
74,949.64x = 103,427.42 × 40,959.26 - Step 4: Simplify right side
74,949.64x = 4,236,310,586.91 - Step 5: Solve for x
x = 4,236,310,586.91/74,949.64 - Step 6: Final answer
x = 56,522.09
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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.