Finding the Fourth Proportional to 71,952.30, 107,913.06 and 40,393.08
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Solution
The fourth proportional to 71,952.30, 107,913.06 and 40,393.08 is: 60,580.98
Step by Step Solution
- Step 1: Write the proportion equation
71,952.30 : 107,913.06 = 40,393.08 : x - Step 2: Convert to fraction form
71,952.30/107,913.06 = 40,393.08/x - Step 3: Cross multiply
71,952.30x = 107,913.06 × 40,393.08 - Step 4: Simplify right side
71,952.30x = 4,358,940,865.62 - Step 5: Solve for x
x = 4,358,940,865.62/71,952.30 - Step 6: Final answer
x = 60,580.98
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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.