Finding the Fourth Proportional to 84,342.78, 126,495.50 and 24,358.23
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Solution
The fourth proportional to 84,342.78, 126,495.50 and 24,358.23 is: 36,531.95
Step by Step Solution
- Step 1: Write the proportion equation
84,342.78 : 126,495.50 = 24,358.23 : x - Step 2: Convert to fraction form
84,342.78/126,495.50 = 24,358.23/x - Step 3: Cross multiply
84,342.78x = 126,495.50 × 24,358.23 - Step 4: Simplify right side
84,342.78x = 3,081,206,361.17 - Step 5: Solve for x
x = 3,081,206,361.17/84,342.78 - Step 6: Final answer
x = 36,531.95
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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.