Finding the Fourth Proportional to 81,776.64, 122,572.62 and 41,682.99
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Solution
The fourth proportional to 81,776.64, 122,572.62 and 41,682.99 is: 62,477.42
Step by Step Solution
- Step 1: Write the proportion equation
81,776.64 : 122,572.62 = 41,682.99 : x - Step 2: Convert to fraction form
81,776.64/122,572.62 = 41,682.99/x - Step 3: Cross multiply
81,776.64x = 122,572.62 × 41,682.99 - Step 4: Simplify right side
81,776.64x = 5,109,193,293.73 - Step 5: Solve for x
x = 5,109,193,293.73/81,776.64 - Step 6: Final answer
x = 62,477.42
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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.