Finding the Fourth Proportional to 79,219.40, 118,749.09 and 49,657.98
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Solution
The fourth proportional to 79,219.40, 118,749.09 and 49,657.98 is: 74,436.82
Step by Step Solution
- Step 1: Write the proportion equation
79,219.40 : 118,749.09 = 49,657.98 : x - Step 2: Convert to fraction form
79,219.40/118,749.09 = 49,657.98/x - Step 3: Cross multiply
79,219.40x = 118,749.09 × 49,657.98 - Step 4: Simplify right side
79,219.40x = 5,896,839,936.24 - Step 5: Solve for x
x = 5,896,839,936.24/79,219.40 - Step 6: Final answer
x = 74,436.82
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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.