Finding the Fourth Proportional to 99,647.30, 149,478.24 and 40,484.09
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Solution
The fourth proportional to 99,647.30, 149,478.24 and 40,484.09 is: 60,729.09
Step by Step Solution
- Step 1: Write the proportion equation
99,647.30 : 149,478.24 = 40,484.09 : x - Step 2: Convert to fraction form
99,647.30/149,478.24 = 40,484.09/x - Step 3: Cross multiply
99,647.30x = 149,478.24 × 40,484.09 - Step 4: Simplify right side
99,647.30x = 6,051,489,773.81 - Step 5: Solve for x
x = 6,051,489,773.81/99,647.30 - Step 6: Final answer
x = 60,729.09
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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.