Finding the Fourth Proportional to 78,125.06, 107,819.21 and 44,139.79
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Solution
The fourth proportional to 78,125.06, 107,819.21 and 44,139.79 is: 60,916.65
Step by Step Solution
- Step 1: Write the proportion equation
78,125.06 : 107,819.21 = 44,139.79 : x - Step 2: Convert to fraction form
78,125.06/107,819.21 = 44,139.79/x - Step 3: Cross multiply
78,125.06x = 107,819.21 × 44,139.79 - Step 4: Simplify right side
78,125.06x = 4,759,117,287.37 - Step 5: Solve for x
x = 4,759,117,287.37/78,125.06 - Step 6: Final answer
x = 60,916.65
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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.