Finding the Fourth Proportional to 67,728.20, 101,587.98 and 30,291.08
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Solution
The fourth proportional to 67,728.20, 101,587.98 and 30,291.08 is: 45,434.69
Step by Step Solution
- Step 1: Write the proportion equation
67,728.20 : 101,587.98 = 30,291.08 : x - Step 2: Convert to fraction form
67,728.20/101,587.98 = 30,291.08/x - Step 3: Cross multiply
67,728.20x = 101,587.98 × 30,291.08 - Step 4: Simplify right side
67,728.20x = 3,077,209,629.22 - Step 5: Solve for x
x = 3,077,209,629.22/67,728.20 - Step 6: Final answer
x = 45,434.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.