Finding the Fourth Proportional to 78,183.13, 107,892.91 and 42,373.13
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Solution
The fourth proportional to 78,183.13, 107,892.91 and 42,373.13 is: 58,475.02
Step by Step Solution
- Step 1: Write the proportion equation
78,183.13 : 107,892.91 = 42,373.13 : x - Step 2: Convert to fraction form
78,183.13/107,892.91 = 42,373.13/x - Step 3: Cross multiply
78,183.13x = 107,892.91 × 42,373.13 - Step 4: Simplify right side
78,183.13x = 4,571,760,301.51 - Step 5: Solve for x
x = 4,571,760,301.51/78,183.13 - Step 6: Final answer
x = 58,475.02
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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.