Finding the Fourth Proportional to 80,401.77, 110,852.47 and 57,458.99
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Solution
The fourth proportional to 80,401.77, 110,852.47 and 57,458.99 is: 79,220.53
Step by Step Solution
- Step 1: Write the proportion equation
80,401.77 : 110,852.47 = 57,458.99 : x - Step 2: Convert to fraction form
80,401.77/110,852.47 = 57,458.99/x - Step 3: Cross multiply
80,401.77x = 110,852.47 × 57,458.99 - Step 4: Simplify right side
80,401.77x = 6,369,470,965.21 - Step 5: Solve for x
x = 6,369,470,965.21/80,401.77 - Step 6: Final answer
x = 79,220.53
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1.5x scale
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.