Finding the Fourth Proportional to 98,826.43, 136,324.79 and 62,516.63
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Solution
The fourth proportional to 98,826.43, 136,324.79 and 62,516.63 is: 86,237.72
Step by Step Solution
- Step 1: Write the proportion equation
98,826.43 : 136,324.79 = 62,516.63 : x - Step 2: Convert to fraction form
98,826.43/136,324.79 = 62,516.63/x - Step 3: Cross multiply
98,826.43x = 136,324.79 × 62,516.63 - Step 4: Simplify right side
98,826.43x = 8,522,565,462.05 - Step 5: Solve for x
x = 8,522,565,462.05/98,826.43 - Step 6: Final answer
x = 86,237.72
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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.