Finding the Fourth Proportional to 98,417.27, 135,826.74 and 55,398.08
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Solution
The fourth proportional to 98,417.27, 135,826.74 and 55,398.08 is: 76,455.49
Step by Step Solution
- Step 1: Write the proportion equation
98,417.27 : 135,826.74 = 55,398.08 : x - Step 2: Convert to fraction form
98,417.27/135,826.74 = 55,398.08/x - Step 3: Cross multiply
98,417.27x = 135,826.74 × 55,398.08 - Step 4: Simplify right side
98,417.27x = 7,524,540,948.23 - Step 5: Solve for x
x = 7,524,540,948.23/98,417.27 - Step 6: Final answer
x = 76,455.49
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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.