Finding the Fourth Proportional to 75,319.12, 112,981.62 and 22,728.61
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Solution
The fourth proportional to 75,319.12, 112,981.62 and 22,728.61 is: 34,093.80
Step by Step Solution
- Step 1: Write the proportion equation
75,319.12 : 112,981.62 = 22,728.61 : x - Step 2: Convert to fraction form
75,319.12/112,981.62 = 22,728.61/x - Step 3: Cross multiply
75,319.12x = 112,981.62 × 22,728.61 - Step 4: Simplify right side
75,319.12x = 2,567,915,178.15 - Step 5: Solve for x
x = 2,567,915,178.15/75,319.12 - Step 6: Final answer
x = 34,093.80
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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.