Finding the Fourth Proportional to 71,133.68, 106,643.34 and 48,881.12
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Solution
The fourth proportional to 71,133.68, 106,643.34 and 48,881.12 is: 73,282.39
Step by Step Solution
- Step 1: Write the proportion equation
71,133.68 : 106,643.34 = 48,881.12 : x - Step 2: Convert to fraction form
71,133.68/106,643.34 = 48,881.12/x - Step 3: Cross multiply
71,133.68x = 106,643.34 × 48,881.12 - Step 4: Simplify right side
71,133.68x = 5,212,845,899.74 - Step 5: Solve for x
x = 5,212,845,899.74/71,133.68 - Step 6: Final answer
x = 73,282.39
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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.