Finding the Fourth Proportional to 80,356.95, 120,557.99 and 29,755.21
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Solution
The fourth proportional to 80,356.95, 120,557.99 and 29,755.21 is: 44,641.17
Step by Step Solution
- Step 1: Write the proportion equation
80,356.95 : 120,557.99 = 29,755.21 : x - Step 2: Convert to fraction form
80,356.95/120,557.99 = 29,755.21/x - Step 3: Cross multiply
80,356.95x = 120,557.99 × 29,755.21 - Step 4: Simplify right side
80,356.95x = 3,587,228,309.63 - Step 5: Solve for x
x = 3,587,228,309.63/80,356.95 - Step 6: Final answer
x = 44,641.17
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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.