Finding the Fourth Proportional to 78,584.24, 108,448.62 and 48,386.99
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Solution
The fourth proportional to 78,584.24, 108,448.62 and 48,386.99 is: 66,775.50
Step by Step Solution
- Step 1: Write the proportion equation
78,584.24 : 108,448.62 = 48,386.99 : x - Step 2: Convert to fraction form
78,584.24/108,448.62 = 48,386.99/x - Step 3: Cross multiply
78,584.24x = 108,448.62 × 48,386.99 - Step 4: Simplify right side
78,584.24x = 5,247,502,043.28 - Step 5: Solve for x
x = 5,247,502,043.28/78,584.24 - Step 6: Final answer
x = 66,775.50
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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.