Finding the Fourth Proportional to 88,358.96, 121,934.40 and 48,072.08
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Solution
The fourth proportional to 88,358.96, 121,934.40 and 48,072.08 is: 66,338.95
Step by Step Solution
- Step 1: Write the proportion equation
88,358.96 : 121,934.40 = 48,072.08 : x - Step 2: Convert to fraction form
88,358.96/121,934.40 = 48,072.08/x - Step 3: Cross multiply
88,358.96x = 121,934.40 × 48,072.08 - Step 4: Simplify right side
88,358.96x = 5,861,640,231.55 - Step 5: Solve for x
x = 5,861,640,231.55/88,358.96 - Step 6: Final answer
x = 66,338.95
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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.