Finding the Fourth Proportional to 68.79, 94.95 and 46.99
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Solution
The fourth proportional to 68.79, 94.95 and 46.99 is: 64.85
Step by Step Solution
- Step 1: Write the proportion equation
68.79 : 94.95 = 46.99 : x - Step 2: Convert to fraction form
68.79/94.95 = 46.99/x - Step 3: Cross multiply
68.79x = 94.95 × 46.99 - Step 4: Simplify right side
68.79x = 4,460.99 - Step 5: Solve for x
x = 4,460.99/68.79 - Step 6: Final answer
x = 64.85
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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.