Finding the Fourth Proportional to 75,304.88, 103,909.17 and 43,467.63
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Solution
The fourth proportional to 75,304.88, 103,909.17 and 43,467.63 is: 59,978.65
Step by Step Solution
- Step 1: Write the proportion equation
75,304.88 : 103,909.17 = 43,467.63 : x - Step 2: Convert to fraction form
75,304.88/103,909.17 = 43,467.63/x - Step 3: Cross multiply
75,304.88x = 103,909.17 × 43,467.63 - Step 4: Simplify right side
75,304.88x = 4,516,685,355.17 - Step 5: Solve for x
x = 4,516,685,355.17/75,304.88 - Step 6: Final answer
x = 59,978.65
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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.