Finding the Fourth Proportional to 61.08, 83.76 and 59.08
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Solution
The fourth proportional to 61.08, 83.76 and 59.08 is: 81.02
Step by Step Solution
- Step 1: Write the proportion equation
61.08 : 83.76 = 59.08 : x - Step 2: Convert to fraction form
61.08/83.76 = 59.08/x - Step 3: Cross multiply
61.08x = 83.76 × 59.08 - Step 4: Simplify right side
61.08x = 4,948.54 - Step 5: Solve for x
x = 4,948.54/61.08 - Step 6: Final answer
x = 81.02
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.