Finding the Fourth Proportional to 75,163.18, 103,675.24 and 48,339.62
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Solution
The fourth proportional to 75,163.18, 103,675.24 and 48,339.62 is: 66,676.55
Step by Step Solution
- Step 1: Write the proportion equation
75,163.18 : 103,675.24 = 48,339.62 : x - Step 2: Convert to fraction form
75,163.18/103,675.24 = 48,339.62/x - Step 3: Cross multiply
75,163.18x = 103,675.24 × 48,339.62 - Step 4: Simplify right side
75,163.18x = 5,011,621,705.01 - Step 5: Solve for x
x = 5,011,621,705.01/75,163.18 - Step 6: Final answer
x = 66,676.55
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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.