Finding the Fourth Proportional to 99,518.28, 137,326.18 and 59,225.53
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Solution
The fourth proportional to 99,518.28, 137,326.18 and 59,225.53 is: 81,725.85
Step by Step Solution
- Step 1: Write the proportion equation
99,518.28 : 137,326.18 = 59,225.53 : x - Step 2: Convert to fraction form
99,518.28/137,326.18 = 59,225.53/x - Step 3: Cross multiply
99,518.28x = 137,326.18 × 59,225.53 - Step 4: Simplify right side
99,518.28x = 8,133,215,793.38 - Step 5: Solve for x
x = 8,133,215,793.38/99,518.28 - Step 6: Final answer
x = 81,725.85
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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.