Finding the Fourth Proportional to 75,695.62, 113,566.79 and 28,315.50
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Solution
The fourth proportional to 75,695.62, 113,566.79 and 28,315.50 is: 42,481.99
Step by Step Solution
- Step 1: Write the proportion equation
75,695.62 : 113,566.79 = 28,315.50 : x - Step 2: Convert to fraction form
75,695.62/113,566.79 = 28,315.50/x - Step 3: Cross multiply
75,695.62x = 113,566.79 × 28,315.50 - Step 4: Simplify right side
75,695.62x = 3,215,700,346.84 - Step 5: Solve for x
x = 3,215,700,346.84/75,695.62 - Step 6: Final answer
x = 42,481.99
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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.