Finding the Fourth Proportional to 99,109.29, 136,770.91 and 53,787.28
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Solution
The fourth proportional to 99,109.29, 136,770.91 and 53,787.28 is: 74,226.50
Step by Step Solution
- Step 1: Write the proportion equation
99,109.29 : 136,770.91 = 53,787.28 : x - Step 2: Convert to fraction form
99,109.29/136,770.91 = 53,787.28/x - Step 3: Cross multiply
99,109.29x = 136,770.91 × 53,787.28 - Step 4: Simplify right side
99,109.29x = 7,356,535,232.02 - Step 5: Solve for x
x = 7,356,535,232.02/99,109.29 - Step 6: Final answer
x = 74,226.50
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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.