Finding the Fourth Proportional to 75,861.99, 104,408.66 and 55,686.92
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Solution
The fourth proportional to 75,861.99, 104,408.66 and 55,686.92 is: 76,641.76
Step by Step Solution
- Step 1: Write the proportion equation
75,861.99 : 104,408.66 = 55,686.92 : x - Step 2: Convert to fraction form
75,861.99/104,408.66 = 55,686.92/x - Step 3: Cross multiply
75,861.99x = 104,408.66 × 55,686.92 - Step 4: Simplify right side
75,861.99x = 5,814,196,313.90 - Step 5: Solve for x
x = 5,814,196,313.90/75,861.99 - Step 6: Final answer
x = 76,641.76
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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.