Finding the Fourth Proportional to 92.16, 138.12 and 38.03
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Solution
The fourth proportional to 92.16, 138.12 and 38.03 is: 56.99
Step by Step Solution
- Step 1: Write the proportion equation
92.16 : 138.12 = 38.03 : x - Step 2: Convert to fraction form
92.16/138.12 = 38.03/x - Step 3: Cross multiply
92.16x = 138.12 × 38.03 - Step 4: Simplify right side
92.16x = 5,252.01 - Step 5: Solve for x
x = 5,252.01/92.16 - Step 6: Final answer
x = 56.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.