Finding the Fourth Proportional to 80,772.84, 121,083.98 and 27,428.34
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Solution
The fourth proportional to 80,772.84, 121,083.98 and 27,428.34 is: 41,116.95
Step by Step Solution
- Step 1: Write the proportion equation
80,772.84 : 121,083.98 = 27,428.34 : x - Step 2: Convert to fraction form
80,772.84/121,083.98 = 27,428.34/x - Step 3: Cross multiply
80,772.84x = 121,083.98 × 27,428.34 - Step 4: Simplify right side
80,772.84x = 3,321,132,501.80 - Step 5: Solve for x
x = 3,321,132,501.80/80,772.84 - Step 6: Final answer
x = 41,116.95
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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.