Finding the Fourth Proportional to 87,866.88, 121,264.96 and 50,146.80
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Solution
The fourth proportional to 87,866.88, 121,264.96 and 50,146.80 is: 69,207.53
Step by Step Solution
- Step 1: Write the proportion equation
87,866.88 : 121,264.96 = 50,146.80 : x - Step 2: Convert to fraction form
87,866.88/121,264.96 = 50,146.80/x - Step 3: Cross multiply
87,866.88x = 121,264.96 × 50,146.80 - Step 4: Simplify right side
87,866.88x = 6,081,049,696.13 - Step 5: Solve for x
x = 6,081,049,696.13/87,866.88 - Step 6: Final answer
x = 69,207.53
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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.