Finding the Fourth Proportional to 115,605.36, 173,411.60 and 31,365.19
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Solution
The fourth proportional to 115,605.36, 173,411.60 and 31,365.19 is: 47,048.75
Step by Step Solution
- Step 1: Write the proportion equation
115,605.36 : 173,411.60 = 31,365.19 : x - Step 2: Convert to fraction form
115,605.36/173,411.60 = 31,365.19/x - Step 3: Cross multiply
115,605.36x = 173,411.60 × 31,365.19 - Step 4: Simplify right side
115,605.36x = 5,439,087,782.20 - Step 5: Solve for x
x = 5,439,087,782.20/115,605.36 - Step 6: Final answer
x = 47,048.75
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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.