Finding the Fourth Proportional to 96,138.64, 132,671.60 and 53,698.80
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Solution
The fourth proportional to 96,138.64, 132,671.60 and 53,698.80 is: 74,104.50
Step by Step Solution
- Step 1: Write the proportion equation
96,138.64 : 132,671.60 = 53,698.80 : x - Step 2: Convert to fraction form
96,138.64/132,671.60 = 53,698.80/x - Step 3: Cross multiply
96,138.64x = 132,671.60 × 53,698.80 - Step 4: Simplify right side
96,138.64x = 7,124,305,714.08 - Step 5: Solve for x
x = 7,124,305,714.08/96,138.64 - Step 6: Final answer
x = 74,104.50
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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.