Finding the Fourth Proportional to 84,016.25, 115,937.84 and 47,716.80
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Solution
The fourth proportional to 84,016.25, 115,937.84 and 47,716.80 is: 65,846.58
Step by Step Solution
- Step 1: Write the proportion equation
84,016.25 : 115,937.84 = 47,716.80 : x - Step 2: Convert to fraction form
84,016.25/115,937.84 = 47,716.80/x - Step 3: Cross multiply
84,016.25x = 115,937.84 × 47,716.80 - Step 4: Simplify right side
84,016.25x = 5,532,182,408.24 - Step 5: Solve for x
x = 5,532,182,408.24/84,016.25 - Step 6: Final answer
x = 65,846.58
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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.