Finding the Fourth Proportional to 99,830.84, 149,704.92 and 40,626.32
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Solution
The fourth proportional to 99,830.84, 149,704.92 and 40,626.32 is: 60,922.66
Step by Step Solution
- Step 1: Write the proportion equation
99,830.84 : 149,704.92 = 40,626.32 : x - Step 2: Convert to fraction form
99,830.84/149,704.92 = 40,626.32/x - Step 3: Cross multiply
99,830.84x = 149,704.92 × 40,626.32 - Step 4: Simplify right side
99,830.84x = 6,081,959,985.49 - Step 5: Solve for x
x = 6,081,959,985.49/99,830.84 - Step 6: Final answer
x = 60,922.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.