Finding the Fourth Proportional to 99,709.07, 149,438.84 and 49,803.09
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Solution
The fourth proportional to 99,709.07, 149,438.84 and 49,803.09 is: 74,642.32
Step by Step Solution
- Step 1: Write the proportion equation
99,709.07 : 149,438.84 = 49,803.09 : x - Step 2: Convert to fraction form
99,709.07/149,438.84 = 49,803.09/x - Step 3: Cross multiply
99,709.07x = 149,438.84 × 49,803.09 - Step 4: Simplify right side
99,709.07x = 7,442,515,749.00 - Step 5: Solve for x
x = 7,442,515,749.00/99,709.07 - Step 6: Final answer
x = 74,642.32
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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.