Finding the Fourth Proportional to 74,902.92, 103,364.40 and 40,910.08
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Solution
The fourth proportional to 74,902.92, 103,364.40 and 40,910.08 is: 56,455.02
Step by Step Solution
- Step 1: Write the proportion equation
74,902.92 : 103,364.40 = 40,910.08 : x - Step 2: Convert to fraction form
74,902.92/103,364.40 = 40,910.08/x - Step 3: Cross multiply
74,902.92x = 103,364.40 × 40,910.08 - Step 4: Simplify right side
74,902.92x = 4,228,645,873.15 - Step 5: Solve for x
x = 4,228,645,873.15/74,902.92 - Step 6: Final answer
x = 56,455.02
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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.