Finding the Fourth Proportional to 78,768.98, 118,114.05 and 26,160.02
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Solution
The fourth proportional to 78,768.98, 118,114.05 and 26,160.02 is: 39,226.94
Step by Step Solution
- Step 1: Write the proportion equation
78,768.98 : 118,114.05 = 26,160.02 : x - Step 2: Convert to fraction form
78,768.98/118,114.05 = 26,160.02/x - Step 3: Cross multiply
78,768.98x = 118,114.05 × 26,160.02 - Step 4: Simplify right side
78,768.98x = 3,089,865,910.28 - Step 5: Solve for x
x = 3,089,865,910.28/78,768.98 - Step 6: Final answer
x = 39,226.94
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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.