Finding the Fourth Proportional to 99,932.41, 137,906.58 and 54,610.81
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Solution
The fourth proportional to 99,932.41, 137,906.58 and 54,610.81 is: 75,362.84
Step by Step Solution
- Step 1: Write the proportion equation
99,932.41 : 137,906.58 = 54,610.81 : x - Step 2: Convert to fraction form
99,932.41/137,906.58 = 54,610.81/x - Step 3: Cross multiply
99,932.41x = 137,906.58 × 54,610.81 - Step 4: Simplify right side
99,932.41x = 7,531,190,038.13 - Step 5: Solve for x
x = 7,531,190,038.13/99,932.41 - Step 6: Final answer
x = 75,362.84
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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.