Finding the Fourth Proportional to 78,737.73, 118,080.91 and 26,133.09
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Solution
The fourth proportional to 78,737.73, 118,080.91 and 26,133.09 is: 39,191.11
Step by Step Solution
- Step 1: Write the proportion equation
78,737.73 : 118,080.91 = 26,133.09 : x - Step 2: Convert to fraction form
78,737.73/118,080.91 = 26,133.09/x - Step 3: Cross multiply
78,737.73x = 118,080.91 × 26,133.09 - Step 4: Simplify right side
78,737.73x = 3,085,819,048.31 - Step 5: Solve for x
x = 3,085,819,048.31/78,737.73 - Step 6: Final answer
x = 39,191.11
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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.