Finding the Fourth Proportional to 87,934.71, 121,352.14 and 53,961.96
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Solution
The fourth proportional to 87,934.71, 121,352.14 and 53,961.96 is: 74,468.88
Step by Step Solution
- Step 1: Write the proportion equation
87,934.71 : 121,352.14 = 53,961.96 : x - Step 2: Convert to fraction form
87,934.71/121,352.14 = 53,961.96/x - Step 3: Cross multiply
87,934.71x = 121,352.14 × 53,961.96 - Step 4: Simplify right side
87,934.71x = 6,548,399,324.59 - Step 5: Solve for x
x = 6,548,399,324.59/87,934.71 - Step 6: Final answer
x = 74,468.88
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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.