Finding the Fourth Proportional to 88,390.17, 121,976.09 and 48,103.07
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Solution
The fourth proportional to 88,390.17, 121,976.09 and 48,103.07 is: 66,380.95
Step by Step Solution
- Step 1: Write the proportion equation
88,390.17 : 121,976.09 = 48,103.07 : x - Step 2: Convert to fraction form
88,390.17/121,976.09 = 48,103.07/x - Step 3: Cross multiply
88,390.17x = 121,976.09 × 48,103.07 - Step 4: Simplify right side
88,390.17x = 5,867,423,785.72 - Step 5: Solve for x
x = 5,867,423,785.72/88,390.17 - Step 6: Final answer
x = 66,380.95
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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.