Finding the Fourth Proportional to 84,660.13, 126,878.77 and 47,237.82
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Solution
The fourth proportional to 84,660.13, 126,878.77 and 47,237.82 is: 70,794.56
Step by Step Solution
- Step 1: Write the proportion equation
84,660.13 : 126,878.77 = 47,237.82 : x - Step 2: Convert to fraction form
84,660.13/126,878.77 = 47,237.82/x - Step 3: Cross multiply
84,660.13x = 126,878.77 × 47,237.82 - Step 4: Simplify right side
84,660.13x = 5,993,476,499.08 - Step 5: Solve for x
x = 5,993,476,499.08/84,660.13 - Step 6: Final answer
x = 70,794.56
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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.