Finding the Fourth Proportional to 98,745.13, 136,269.26 and 53,424.09
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Solution
The fourth proportional to 98,745.13, 136,269.26 and 53,424.09 is: 73,725.77
Step by Step Solution
- Step 1: Write the proportion equation
98,745.13 : 136,269.26 = 53,424.09 : x - Step 2: Convert to fraction form
98,745.13/136,269.26 = 53,424.09/x - Step 3: Cross multiply
98,745.13x = 136,269.26 × 53,424.09 - Step 4: Simplify right side
98,745.13x = 7,280,061,293.95 - Step 5: Solve for x
x = 7,280,061,293.95/98,745.13 - Step 6: Final answer
x = 73,725.77
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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.