Finding the Fourth Proportional to 74,882.28, 103,337.76 and 40,891.08
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Solution
The fourth proportional to 74,882.28, 103,337.76 and 40,891.08 is: 56,429.81
Step by Step Solution
- Step 1: Write the proportion equation
74,882.28 : 103,337.76 = 40,891.08 : x - Step 2: Convert to fraction form
74,882.28/103,337.76 = 40,891.08/x - Step 3: Cross multiply
74,882.28x = 103,337.76 × 40,891.08 - Step 4: Simplify right side
74,882.28x = 4,225,592,611.18 - Step 5: Solve for x
x = 4,225,592,611.18/74,882.28 - Step 6: Final answer
x = 56,429.81
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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.