Finding the Fourth Proportional to 92,434.08, 138,640.41 and 25,879.53
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Solution
The fourth proportional to 92,434.08, 138,640.41 and 25,879.53 is: 38,816.30
Step by Step Solution
- Step 1: Write the proportion equation
92,434.08 : 138,640.41 = 25,879.53 : x - Step 2: Convert to fraction form
92,434.08/138,640.41 = 25,879.53/x - Step 3: Cross multiply
92,434.08x = 138,640.41 × 25,879.53 - Step 4: Simplify right side
92,434.08x = 3,587,948,649.81 - Step 5: Solve for x
x = 3,587,948,649.81/92,434.08 - Step 6: Final answer
x = 38,816.30
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1.5x scale
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.