Finding the Fourth Proportional to 78,149.96, 107,820.42 and 44,153.48
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Solution
The fourth proportional to 78,149.96, 107,820.42 and 44,153.48 is: 60,916.82
Step by Step Solution
- Step 1: Write the proportion equation
78,149.96 : 107,820.42 = 44,153.48 : x - Step 2: Convert to fraction form
78,149.96/107,820.42 = 44,153.48/x - Step 3: Cross multiply
78,149.96x = 107,820.42 × 44,153.48 - Step 4: Simplify right side
78,149.96x = 4,760,646,758.06 - Step 5: Solve for x
x = 4,760,646,758.06/78,149.96 - Step 6: Final answer
x = 60,916.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.