Finding the Fourth Proportional to 84,431.59, 126,522.05 and 46,940.09
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Solution
The fourth proportional to 84,431.59, 126,522.05 and 46,940.09 is: 70,340.45
Step by Step Solution
- Step 1: Write the proportion equation
84,431.59 : 126,522.05 = 46,940.09 : x - Step 2: Convert to fraction form
84,431.59/126,522.05 = 46,940.09/x - Step 3: Cross multiply
84,431.59x = 126,522.05 × 46,940.09 - Step 4: Simplify right side
84,431.59x = 5,938,955,898.72 - Step 5: Solve for x
x = 5,938,955,898.72/84,431.59 - Step 6: Final answer
x = 70,340.45
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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.