Finding the Fourth Proportional to 71,710.08, 107,460.48 and 40,385.28
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Solution
The fourth proportional to 71,710.08, 107,460.48 and 40,385.28 is: 60,518.99
Step by Step Solution
- Step 1: Write the proportion equation
71,710.08 : 107,460.48 = 40,385.28 : x - Step 2: Convert to fraction form
71,710.08/107,460.48 = 40,385.28/x - Step 3: Cross multiply
71,710.08x = 107,460.48 × 40,385.28 - Step 4: Simplify right side
71,710.08x = 4,339,821,573.73 - Step 5: Solve for x
x = 4,339,821,573.73/71,710.08 - Step 6: Final answer
x = 60,518.99
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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.