Finding the Fourth Proportional to 75,106.78, 103,640.32 and 44,886.09
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Solution
The fourth proportional to 75,106.78, 103,640.32 and 44,886.09 is: 61,938.60
Step by Step Solution
- Step 1: Write the proportion equation
75,106.78 : 103,640.32 = 44,886.09 : x - Step 2: Convert to fraction form
75,106.78/103,640.32 = 44,886.09/x - Step 3: Cross multiply
75,106.78x = 103,640.32 × 44,886.09 - Step 4: Simplify right side
75,106.78x = 4,652,008,731.15 - Step 5: Solve for x
x = 4,652,008,731.15/75,106.78 - Step 6: Final answer
x = 61,938.60
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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.