Finding the Fourth Proportional to 84,305.21, 126,520.16 and 39,932.06
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Solution
The fourth proportional to 84,305.21, 126,520.16 and 39,932.06 is: 59,927.61
Step by Step Solution
- Step 1: Write the proportion equation
84,305.21 : 126,520.16 = 39,932.06 : x - Step 2: Convert to fraction form
84,305.21/126,520.16 = 39,932.06/x - Step 3: Cross multiply
84,305.21x = 126,520.16 × 39,932.06 - Step 4: Simplify right side
84,305.21x = 5,052,209,788.07 - Step 5: Solve for x
x = 5,052,209,788.07/84,305.21 - Step 6: Final answer
x = 59,927.61
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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.