Finding the Fourth Proportional to 78,827.57, 118,142.93 and 39,395.96
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Solution
The fourth proportional to 78,827.57, 118,142.93 and 39,395.96 is: 59,044.75
Step by Step Solution
- Step 1: Write the proportion equation
78,827.57 : 118,142.93 = 39,395.96 : x - Step 2: Convert to fraction form
78,827.57/118,142.93 = 39,395.96/x - Step 3: Cross multiply
78,827.57x = 118,142.93 × 39,395.96 - Step 4: Simplify right side
78,827.57x = 4,654,353,553.85 - Step 5: Solve for x
x = 4,654,353,553.85/78,827.57 - Step 6: Final answer
x = 59,044.75
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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.