Finding the Fourth Proportional to 61.24, 91.80 and 29.08
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Solution
The fourth proportional to 61.24, 91.80 and 29.08 is: 43.59
Step by Step Solution
- Step 1: Write the proportion equation
61.24 : 91.80 = 29.08 : x - Step 2: Convert to fraction form
61.24/91.80 = 29.08/x - Step 3: Cross multiply
61.24x = 91.80 × 29.08 - Step 4: Simplify right side
61.24x = 2,669.54 - Step 5: Solve for x
x = 2,669.54/61.24 - Step 6: Final answer
x = 43.59
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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.