Finding the Fourth Proportional to 73,151.19, 100,948.59 and 39,617.19
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Solution
The fourth proportional to 73,151.19, 100,948.59 and 39,617.19 is: 54,671.69
Step by Step Solution
- Step 1: Write the proportion equation
73,151.19 : 100,948.59 = 39,617.19 : x - Step 2: Convert to fraction form
73,151.19/100,948.59 = 39,617.19/x - Step 3: Cross multiply
73,151.19x = 100,948.59 × 39,617.19 - Step 4: Simplify right side
73,151.19x = 3,999,299,470.26 - Step 5: Solve for x
x = 3,999,299,470.26/73,151.19 - Step 6: Final answer
x = 54,671.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.