Finding the Fourth Proportional to 73,135.19, 109,702.79 and 25,739.12
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Solution
The fourth proportional to 73,135.19, 109,702.79 and 25,739.12 is: 38,608.68
Step by Step Solution
- Step 1: Write the proportion equation
73,135.19 : 109,702.79 = 25,739.12 : x - Step 2: Convert to fraction form
73,135.19/109,702.79 = 25,739.12/x - Step 3: Cross multiply
73,135.19x = 109,702.79 × 25,739.12 - Step 4: Simplify right side
73,135.19x = 2,823,653,518.23 - Step 5: Solve for x
x = 2,823,653,518.23/73,135.19 - Step 6: Final answer
x = 38,608.68
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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.