Finding the Fourth Proportional to 73,545.46, 110,318.19 and 20,955.09
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Solution
The fourth proportional to 73,545.46, 110,318.19 and 20,955.09 is: 31,432.64
Step by Step Solution
- Step 1: Write the proportion equation
73,545.46 : 110,318.19 = 20,955.09 : x - Step 2: Convert to fraction form
73,545.46/110,318.19 = 20,955.09/x - Step 3: Cross multiply
73,545.46x = 110,318.19 × 20,955.09 - Step 4: Simplify right side
73,545.46x = 2,311,727,935.20 - Step 5: Solve for x
x = 2,311,727,935.20/73,545.46 - Step 6: Final answer
x = 31,432.64
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.