Finding the Fourth Proportional to 84,543.06, 126,816.92 and 25,378.75
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Solution
The fourth proportional to 84,543.06, 126,816.92 and 25,378.75 is: 38,068.82
Step by Step Solution
- Step 1: Write the proportion equation
84,543.06 : 126,816.92 = 25,378.75 : x - Step 2: Convert to fraction form
84,543.06/126,816.92 = 25,378.75/x - Step 3: Cross multiply
84,543.06x = 126,816.92 × 25,378.75 - Step 4: Simplify right side
84,543.06x = 3,218,454,147.47 - Step 5: Solve for x
x = 3,218,454,147.47/84,543.06 - Step 6: Final answer
x = 38,068.82
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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.