Finding the Fourth Proportional to 81,270.06, 121,874.77 and 27,946.95
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Solution
The fourth proportional to 81,270.06, 121,874.77 and 27,946.95 is: 41,910.00
Step by Step Solution
- Step 1: Write the proportion equation
81,270.06 : 121,874.77 = 27,946.95 : x - Step 2: Convert to fraction form
81,270.06/121,874.77 = 27,946.95/x - Step 3: Cross multiply
81,270.06x = 121,874.77 × 27,946.95 - Step 4: Simplify right side
81,270.06x = 3,406,028,103.45 - Step 5: Solve for x
x = 3,406,028,103.45/81,270.06 - Step 6: Final answer
x = 41,910.00
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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.