Finding the Fourth Proportional to 70,859.98, 106,283.49 and 21,611.98
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Solution
The fourth proportional to 70,859.98, 106,283.49 and 21,611.98 is: 32,415.99
Step by Step Solution
- Step 1: Write the proportion equation
70,859.98 : 106,283.49 = 21,611.98 : x - Step 2: Convert to fraction form
70,859.98/106,283.49 = 21,611.98/x - Step 3: Cross multiply
70,859.98x = 106,283.49 × 21,611.98 - Step 4: Simplify right side
70,859.98x = 2,296,996,660.21 - Step 5: Solve for x
x = 2,296,996,660.21/70,859.98 - Step 6: Final answer
x = 32,415.99
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1.5x scale
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.