Finding the Fourth Proportional to 83,608.26, 115,474.44 and 56,703.96
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Solution
The fourth proportional to 83,608.26, 115,474.44 and 56,703.96 is: 78,315.92
Step by Step Solution
- Step 1: Write the proportion equation
83,608.26 : 115,474.44 = 56,703.96 : x - Step 2: Convert to fraction form
83,608.26/115,474.44 = 56,703.96/x - Step 3: Cross multiply
83,608.26x = 115,474.44 × 56,703.96 - Step 4: Simplify right side
83,608.26x = 6,547,858,026.78 - Step 5: Solve for x
x = 6,547,858,026.78/83,608.26 - Step 6: Final answer
x = 78,315.92
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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.