Finding the Fourth Proportional to 74,695.98, 103,079.16 and 40,704.84
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Solution
The fourth proportional to 74,695.98, 103,079.16 and 40,704.84 is: 56,171.97
Step by Step Solution
- Step 1: Write the proportion equation
74,695.98 : 103,079.16 = 40,704.84 : x - Step 2: Convert to fraction form
74,695.98/103,079.16 = 40,704.84/x - Step 3: Cross multiply
74,695.98x = 103,079.16 × 40,704.84 - Step 4: Simplify right side
74,695.98x = 4,195,820,715.13 - Step 5: Solve for x
x = 4,195,820,715.13/74,695.98 - Step 6: Final answer
x = 56,171.97
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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.