Finding the Fourth Proportional to 93.14, 139.63 and 47.44
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Solution
The fourth proportional to 93.14, 139.63 and 47.44 is: 71.12
Step by Step Solution
- Step 1: Write the proportion equation
93.14 : 139.63 = 47.44 : x - Step 2: Convert to fraction form
93.14/139.63 = 47.44/x - Step 3: Cross multiply
93.14x = 139.63 × 47.44 - Step 4: Simplify right side
93.14x = 6,624.05 - Step 5: Solve for x
x = 6,624.05/93.14 - Step 6: Final answer
x = 71.12
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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.