Finding the Fourth Proportional to 75,620.99, 113,501.66 and 38,207.35
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Solution
The fourth proportional to 75,620.99, 113,501.66 and 38,207.35 is: 57,346.47
Step by Step Solution
- Step 1: Write the proportion equation
75,620.99 : 113,501.66 = 38,207.35 : x - Step 2: Convert to fraction form
75,620.99/113,501.66 = 38,207.35/x - Step 3: Cross multiply
75,620.99x = 113,501.66 × 38,207.35 - Step 4: Simplify right side
75,620.99x = 4,336,597,174.41 - Step 5: Solve for x
x = 4,336,597,174.41/75,620.99 - Step 6: Final answer
x = 57,346.47
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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.