Finding the Fourth Proportional to 76,322.19, 105,202.98 and 60,163.17
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Solution
The fourth proportional to 76,322.19, 105,202.98 and 60,163.17 is: 82,929.28
Step by Step Solution
- Step 1: Write the proportion equation
76,322.19 : 105,202.98 = 60,163.17 : x - Step 2: Convert to fraction form
76,322.19/105,202.98 = 60,163.17/x - Step 3: Cross multiply
76,322.19x = 105,202.98 × 60,163.17 - Step 4: Simplify right side
76,322.19x = 6,329,344,807.64 - Step 5: Solve for x
x = 6,329,344,807.64/76,322.19 - Step 6: Final answer
x = 82,929.28
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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.