Finding the Fourth Proportional to 78,357.40, 108,132.09 and 44,364.99
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Solution
The fourth proportional to 78,357.40, 108,132.09 and 44,364.99 is: 61,223.06
Step by Step Solution
- Step 1: Write the proportion equation
78,357.40 : 108,132.09 = 44,364.99 : x - Step 2: Convert to fraction form
78,357.40/108,132.09 = 44,364.99/x - Step 3: Cross multiply
78,357.40x = 108,132.09 × 44,364.99 - Step 4: Simplify right side
78,357.40x = 4,797,279,330.66 - Step 5: Solve for x
x = 4,797,279,330.66/78,357.40 - Step 6: Final answer
x = 61,223.06
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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.