Finding the Fourth Proportional to 84,536.97, 126,813.90 and 31,242.95
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Solution
The fourth proportional to 84,536.97, 126,813.90 and 31,242.95 is: 46,867.55
Step by Step Solution
- Step 1: Write the proportion equation
84,536.97 : 126,813.90 = 31,242.95 : x - Step 2: Convert to fraction form
84,536.97/126,813.90 = 31,242.95/x - Step 3: Cross multiply
84,536.97x = 126,813.90 × 31,242.95 - Step 4: Simplify right side
84,536.97x = 3,962,040,295.65 - Step 5: Solve for x
x = 3,962,040,295.65/84,536.97 - Step 6: Final answer
x = 46,867.55
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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.