Finding the Fourth Proportional to 96,991.56, 133,837.92 and 54,541.08
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Solution
The fourth proportional to 96,991.56, 133,837.92 and 54,541.08 is: 75,260.82
Step by Step Solution
- Step 1: Write the proportion equation
96,991.56 : 133,837.92 = 54,541.08 : x - Step 2: Convert to fraction form
96,991.56/133,837.92 = 54,541.08/x - Step 3: Cross multiply
96,991.56x = 133,837.92 × 54,541.08 - Step 4: Simplify right side
96,991.56x = 7,299,664,701.75 - Step 5: Solve for x
x = 7,299,664,701.75/96,991.56 - Step 6: Final answer
x = 75,260.82
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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.