Finding the Fourth Proportional to 75,143.04, 103,673.88 and 43,307.64
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Solution
The fourth proportional to 75,143.04, 103,673.88 and 43,307.64 is: 59,750.99
Step by Step Solution
- Step 1: Write the proportion equation
75,143.04 : 103,673.88 = 43,307.64 : x - Step 2: Convert to fraction form
75,143.04/103,673.88 = 43,307.64/x - Step 3: Cross multiply
75,143.04x = 103,673.88 × 43,307.64 - Step 4: Simplify right side
75,143.04x = 4,489,871,072.44 - Step 5: Solve for x
x = 4,489,871,072.44/75,143.04 - Step 6: Final answer
x = 59,750.99
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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.