Finding the Fourth Proportional to 70.12, 96.84 and 59.08
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Solution
The fourth proportional to 70.12, 96.84 and 59.08 is: 81.59
Step by Step Solution
- Step 1: Write the proportion equation
70.12 : 96.84 = 59.08 : x - Step 2: Convert to fraction form
70.12/96.84 = 59.08/x - Step 3: Cross multiply
70.12x = 96.84 × 59.08 - Step 4: Simplify right side
70.12x = 5,721.31 - Step 5: Solve for x
x = 5,721.31/70.12 - Step 6: Final answer
x = 81.59
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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.