Finding the Fourth Proportional to 74,232.68, 102,358.50 and 57,198.92
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Solution
The fourth proportional to 74,232.68, 102,358.50 and 57,198.92 is: 78,870.86
Step by Step Solution
- Step 1: Write the proportion equation
74,232.68 : 102,358.50 = 57,198.92 : x - Step 2: Convert to fraction form
74,232.68/102,358.50 = 57,198.92/x - Step 3: Cross multiply
74,232.68x = 102,358.50 × 57,198.92 - Step 4: Simplify right side
74,232.68x = 5,854,795,652.82 - Step 5: Solve for x
x = 5,854,795,652.82/74,232.68 - Step 6: Final answer
x = 78,870.86
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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.