Finding the Fourth Proportional to 93.20, 139.69 and 44.40
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Solution
The fourth proportional to 93.20, 139.69 and 44.40 is: 66.55
Step by Step Solution
- Step 1: Write the proportion equation
93.20 : 139.69 = 44.40 : x - Step 2: Convert to fraction form
93.20/139.69 = 44.40/x - Step 3: Cross multiply
93.20x = 139.69 × 44.40 - Step 4: Simplify right side
93.20x = 6,202.24 - Step 5: Solve for x
x = 6,202.24/93.20 - Step 6: Final answer
x = 66.55
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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.