Finding the Fourth Proportional to 75,128.16, 103,669.68 and 44,907.48
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Solution
The fourth proportional to 75,128.16, 103,669.68 and 44,907.48 is: 61,968.03
Step by Step Solution
- Step 1: Write the proportion equation
75,128.16 : 103,669.68 = 44,907.48 : x - Step 2: Convert to fraction form
75,128.16/103,669.68 = 44,907.48/x - Step 3: Cross multiply
75,128.16x = 103,669.68 × 44,907.48 - Step 4: Simplify right side
75,128.16x = 4,655,544,081.21 - Step 5: Solve for x
x = 4,655,544,081.21/75,128.16 - Step 6: Final answer
x = 61,968.03
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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.