Finding the Fourth Proportional to 80,376.99, 120,564.23 and 19,587.95
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Solution
The fourth proportional to 80,376.99, 120,564.23 and 19,587.95 is: 29,381.62
Step by Step Solution
- Step 1: Write the proportion equation
80,376.99 : 120,564.23 = 19,587.95 : x - Step 2: Convert to fraction form
80,376.99/120,564.23 = 19,587.95/x - Step 3: Cross multiply
80,376.99x = 120,564.23 × 19,587.95 - Step 4: Simplify right side
80,376.99x = 2,361,605,860.38 - Step 5: Solve for x
x = 2,361,605,860.38/80,376.99 - Step 6: Final answer
x = 29,381.62
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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.