Finding the Fourth Proportional to 80,911.29, 121,347.48 and 41,448.09
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Solution
The fourth proportional to 80,911.29, 121,347.48 and 41,448.09 is: 62,162.17
Step by Step Solution
- Step 1: Write the proportion equation
80,911.29 : 121,347.48 = 41,448.09 : x - Step 2: Convert to fraction form
80,911.29/121,347.48 = 41,448.09/x - Step 3: Cross multiply
80,911.29x = 121,347.48 × 41,448.09 - Step 4: Simplify right side
80,911.29x = 5,029,621,272.31 - Step 5: Solve for x
x = 5,029,621,272.31/80,911.29 - Step 6: Final answer
x = 62,162.17
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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.