Finding the Fourth Proportional to 80,754.47, 121,136.56 and 34,010.99
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Solution
The fourth proportional to 80,754.47, 121,136.56 and 34,010.99 is: 51,018.53
Step by Step Solution
- Step 1: Write the proportion equation
80,754.47 : 121,136.56 = 34,010.99 : x - Step 2: Convert to fraction form
80,754.47/121,136.56 = 34,010.99/x - Step 3: Cross multiply
80,754.47x = 121,136.56 × 34,010.99 - Step 4: Simplify right side
80,754.47x = 4,119,974,330.79 - Step 5: Solve for x
x = 4,119,974,330.79/80,754.47 - Step 6: Final answer
x = 51,018.53
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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.