Finding the Fourth Proportional to 70.99, 106.44 and 25.35
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Solution
The fourth proportional to 70.99, 106.44 and 25.35 is: 38.01
Step by Step Solution
- Step 1: Write the proportion equation
70.99 : 106.44 = 25.35 : x - Step 2: Convert to fraction form
70.99/106.44 = 25.35/x - Step 3: Cross multiply
70.99x = 106.44 × 25.35 - Step 4: Simplify right side
70.99x = 2,698.25 - Step 5: Solve for x
x = 2,698.25/70.99 - Step 6: Final answer
x = 38.01
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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.