Finding the Fourth Proportional to 74,528.75, 102,851.30 and 40,994.75
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Solution
The fourth proportional to 74,528.75, 102,851.30 and 40,994.75 is: 56,573.65
Step by Step Solution
- Step 1: Write the proportion equation
74,528.75 : 102,851.30 = 40,994.75 : x - Step 2: Convert to fraction form
74,528.75/102,851.30 = 40,994.75/x - Step 3: Cross multiply
74,528.75x = 102,851.30 × 40,994.75 - Step 4: Simplify right side
74,528.75x = 4,216,363,330.68 - Step 5: Solve for x
x = 4,216,363,330.68/74,528.75 - Step 6: Final answer
x = 56,573.65
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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.