Finding the Fourth Proportional to 77,163.66, 106,489.99 and 43,170.11
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Solution
The fourth proportional to 77,163.66, 106,489.99 and 43,170.11 is: 59,577.07
Step by Step Solution
- Step 1: Write the proportion equation
77,163.66 : 106,489.99 = 43,170.11 : x - Step 2: Convert to fraction form
77,163.66/106,489.99 = 43,170.11/x - Step 3: Cross multiply
77,163.66x = 106,489.99 × 43,170.11 - Step 4: Simplify right side
77,163.66x = 4,597,185,102.06 - Step 5: Solve for x
x = 4,597,185,102.06/77,163.66 - Step 6: Final answer
x = 59,577.07
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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.