Finding the Fourth Proportional to 91,249.16, 125,009.25 and 87,837.79
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Solution
The fourth proportional to 91,249.16, 125,009.25 and 87,837.79 is: 120,335.74
Step by Step Solution
- Step 1: Write the proportion equation
91,249.16 : 125,009.25 = 87,837.79 : x - Step 2: Convert to fraction form
91,249.16/125,009.25 = 87,837.79/x - Step 3: Cross multiply
91,249.16x = 125,009.25 × 87,837.79 - Step 4: Simplify right side
91,249.16x = 10,980,535,937.03 - Step 5: Solve for x
x = 10,980,535,937.03/91,249.16 - Step 6: Final answer
x = 120,335.74
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.