Finding the Fourth Proportional to 74,989.13, 103,486.25 and 44,777.09
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Solution
The fourth proportional to 74,989.13, 103,486.25 and 44,777.09 is: 61,793.14
Step by Step Solution
- Step 1: Write the proportion equation
74,989.13 : 103,486.25 = 44,777.09 : x - Step 2: Convert to fraction form
74,989.13/103,486.25 = 44,777.09/x - Step 3: Cross multiply
74,989.13x = 103,486.25 × 44,777.09 - Step 4: Simplify right side
74,989.13x = 4,633,813,500.67 - Step 5: Solve for x
x = 4,633,813,500.67/74,989.13 - Step 6: Final answer
x = 61,793.14
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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.