Finding the Fourth Proportional to 98,115.88, 135,400.26 and 53,403.88
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Solution
The fourth proportional to 98,115.88, 135,400.26 and 53,403.88 is: 73,697.54
Step by Step Solution
- Step 1: Write the proportion equation
98,115.88 : 135,400.26 = 53,403.88 : x - Step 2: Convert to fraction form
98,115.88/135,400.26 = 53,403.88/x - Step 3: Cross multiply
98,115.88x = 135,400.26 × 53,403.88 - Step 4: Simplify right side
98,115.88x = 7,230,899,237.01 - Step 5: Solve for x
x = 7,230,899,237.01/98,115.88 - Step 6: Final answer
x = 73,697.54
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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.