Finding the Fourth Proportional to 96,832.80, 133,685.28 and 63,357.12
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Solution
The fourth proportional to 96,832.80, 133,685.28 and 63,357.12 is: 87,469.48
Step by Step Solution
- Step 1: Write the proportion equation
96,832.80 : 133,685.28 = 63,357.12 : x - Step 2: Convert to fraction form
96,832.80/133,685.28 = 63,357.12/x - Step 3: Cross multiply
96,832.80x = 133,685.28 × 63,357.12 - Step 4: Simplify right side
96,832.80x = 8,469,914,327.19 - Step 5: Solve for x
x = 8,469,914,327.19/96,832.80 - Step 6: Final answer
x = 87,469.48
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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.