Finding the Fourth Proportional to 93.08, 139.68 and 38.99
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Solution
The fourth proportional to 93.08, 139.68 and 38.99 is: 58.51
Step by Step Solution
- Step 1: Write the proportion equation
93.08 : 139.68 = 38.99 : x - Step 2: Convert to fraction form
93.08/139.68 = 38.99/x - Step 3: Cross multiply
93.08x = 139.68 × 38.99 - Step 4: Simplify right side
93.08x = 5,445.42 - Step 5: Solve for x
x = 5,445.42/93.08 - Step 6: Final answer
x = 58.51
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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.