Finding the Fourth Proportional to 96,659.13, 133,390.62 and 54,216.75
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Solution
The fourth proportional to 96,659.13, 133,390.62 and 54,216.75 is: 74,819.69
Step by Step Solution
- Step 1: Write the proportion equation
96,659.13 : 133,390.62 = 54,216.75 : x - Step 2: Convert to fraction form
96,659.13/133,390.62 = 54,216.75/x - Step 3: Cross multiply
96,659.13x = 133,390.62 × 54,216.75 - Step 4: Simplify right side
96,659.13x = 7,232,005,896.89 - Step 5: Solve for x
x = 7,232,005,896.89/96,659.13 - Step 6: Final answer
x = 74,819.69
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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.