Finding the Fourth Proportional to 78,793.86, 117,576.24 and 70,301.99
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Solution
The fourth proportional to 78,793.86, 117,576.24 and 70,301.99 is: 104,904.66
Step by Step Solution
- Step 1: Write the proportion equation
78,793.86 : 117,576.24 = 70,301.99 : x - Step 2: Convert to fraction form
78,793.86/117,576.24 = 70,301.99/x - Step 3: Cross multiply
78,793.86x = 117,576.24 × 70,301.99 - Step 4: Simplify right side
78,793.86x = 8,265,842,709.33 - Step 5: Solve for x
x = 8,265,842,709.33/78,793.86 - Step 6: Final answer
x = 104,904.66
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.