Finding the Fourth Proportional to 75,033.21, 103,486.04 and 63,740.09
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Solution
The fourth proportional to 75,033.21, 103,486.04 and 63,740.09 is: 87,910.53
Step by Step Solution
- Step 1: Write the proportion equation
75,033.21 : 103,486.04 = 63,740.09 : x - Step 2: Convert to fraction form
75,033.21/103,486.04 = 63,740.09/x - Step 3: Cross multiply
75,033.21x = 103,486.04 × 63,740.09 - Step 4: Simplify right side
75,033.21x = 6,596,209,503.34 - Step 5: Solve for x
x = 6,596,209,503.34/75,033.21 - Step 6: Final answer
x = 87,910.53
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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.