Finding the Fourth Proportional to 75,444.40, 113,617.94 and 68,718.46
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Solution
The fourth proportional to 75,444.40, 113,617.94 and 68,718.46 is: 103,488.79
Step by Step Solution
- Step 1: Write the proportion equation
75,444.40 : 113,617.94 = 68,718.46 : x - Step 2: Convert to fraction form
75,444.40/113,617.94 = 68,718.46/x - Step 3: Cross multiply
75,444.40x = 113,617.94 × 68,718.46 - Step 4: Simplify right side
75,444.40x = 7,807,649,693.38 - Step 5: Solve for x
x = 7,807,649,693.38/75,444.40 - Step 6: Final answer
x = 103,488.79
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.