Finding the Fourth Proportional to 99,735.21, 149,618.49 and 40,576.05
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Solution
The fourth proportional to 99,735.21, 149,618.49 and 40,576.05 is: 60,870.45
Step by Step Solution
- Step 1: Write the proportion equation
99,735.21 : 149,618.49 = 40,576.05 : x - Step 2: Convert to fraction form
99,735.21/149,618.49 = 40,576.05/x - Step 3: Cross multiply
99,735.21x = 149,618.49 × 40,576.05 - Step 4: Simplify right side
99,735.21x = 6,070,927,331.16 - Step 5: Solve for x
x = 6,070,927,331.16/99,735.21 - Step 6: Final answer
x = 60,870.45
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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.