Finding the Fourth Proportional to 75,272.19, 103,880.21 and 43,443.13
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Solution
The fourth proportional to 75,272.19, 103,880.21 and 43,443.13 is: 59,954.17
Step by Step Solution
- Step 1: Write the proportion equation
75,272.19 : 103,880.21 = 43,443.13 : x - Step 2: Convert to fraction form
75,272.19/103,880.21 = 43,443.13/x - Step 3: Cross multiply
75,272.19x = 103,880.21 × 43,443.13 - Step 4: Simplify right side
75,272.19x = 4,512,881,250.24 - Step 5: Solve for x
x = 4,512,881,250.24/75,272.19 - Step 6: Final answer
x = 59,954.17
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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.