Finding the Fourth Proportional to 84,511.88, 126,585.58 and 79,543.46
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Solution
The fourth proportional to 84,511.88, 126,585.58 and 79,543.46 is: 119,143.66
Step by Step Solution
- Step 1: Write the proportion equation
84,511.88 : 126,585.58 = 79,543.46 : x - Step 2: Convert to fraction form
84,511.88/126,585.58 = 79,543.46/x - Step 3: Cross multiply
84,511.88x = 126,585.58 × 79,543.46 - Step 4: Simplify right side
84,511.88x = 10,069,055,019.31 - Step 5: Solve for x
x = 10,069,055,019.31/84,511.88 - Step 6: Final answer
x = 119,143.66
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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.