Finding the Fourth Proportional to 84,828.09, 117,113.67 and 53,040.18
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Solution
The fourth proportional to 84,828.09, 117,113.67 and 53,040.18 is: 73,227.28
Step by Step Solution
- Step 1: Write the proportion equation
84,828.09 : 117,113.67 = 53,040.18 : x - Step 2: Convert to fraction form
84,828.09/117,113.67 = 53,040.18/x - Step 3: Cross multiply
84,828.09x = 117,113.67 × 53,040.18 - Step 4: Simplify right side
84,828.09x = 6,211,730,137.26 - Step 5: Solve for x
x = 6,211,730,137.26/84,828.09 - Step 6: Final answer
x = 73,227.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.