Finding the Fourth Proportional to 75,991.28, 113,987.00 and 19,831.34
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Solution
The fourth proportional to 75,991.28, 113,987.00 and 19,831.34 is: 29,747.04
Step by Step Solution
- Step 1: Write the proportion equation
75,991.28 : 113,987.00 = 19,831.34 : x - Step 2: Convert to fraction form
75,991.28/113,987.00 = 19,831.34/x - Step 3: Cross multiply
75,991.28x = 113,987.00 × 19,831.34 - Step 4: Simplify right side
75,991.28x = 2,260,515,287.13 - Step 5: Solve for x
x = 2,260,515,287.13/75,991.28 - Step 6: Final answer
x = 29,747.04
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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.