Finding the Fourth Proportional to 74,747.26, 112,167.57 and 30,373.99
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Solution
The fourth proportional to 74,747.26, 112,167.57 and 30,373.99 is: 45,579.95
Step by Step Solution
- Step 1: Write the proportion equation
74,747.26 : 112,167.57 = 30,373.99 : x - Step 2: Convert to fraction form
74,747.26/112,167.57 = 30,373.99/x - Step 3: Cross multiply
74,747.26x = 112,167.57 × 30,373.99 - Step 4: Simplify right side
74,747.26x = 3,406,976,440.27 - Step 5: Solve for x
x = 3,406,976,440.27/74,747.26 - Step 6: Final answer
x = 45,579.95
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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.