Finding the Fourth Proportional to 80,759.08, 121,130.11 and 21,600.73
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Solution
The fourth proportional to 80,759.08, 121,130.11 and 21,600.73 is: 32,398.82
Step by Step Solution
- Step 1: Write the proportion equation
80,759.08 : 121,130.11 = 21,600.73 : x - Step 2: Convert to fraction form
80,759.08/121,130.11 = 21,600.73/x - Step 3: Cross multiply
80,759.08x = 121,130.11 × 21,600.73 - Step 4: Simplify right side
80,759.08x = 2,616,498,800.98 - Step 5: Solve for x
x = 2,616,498,800.98/80,759.08 - Step 6: Final answer
x = 32,398.82
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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.