Finding the Fourth Proportional to 80,539.20, 111,158.58 and 46,542.99
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Solution
The fourth proportional to 80,539.20, 111,158.58 and 46,542.99 is: 64,237.70
Step by Step Solution
- Step 1: Write the proportion equation
80,539.20 : 111,158.58 = 46,542.99 : x - Step 2: Convert to fraction form
80,539.20/111,158.58 = 46,542.99/x - Step 3: Cross multiply
80,539.20x = 111,158.58 × 46,542.99 - Step 4: Simplify right side
80,539.20x = 5,173,652,677.35 - Step 5: Solve for x
x = 5,173,652,677.35/80,539.20 - Step 6: Final answer
x = 64,237.70
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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.