Finding the Fourth Proportional to 99,040.08, 136,701.36 and 61,345.92
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Solution
The fourth proportional to 99,040.08, 136,701.36 and 61,345.92 is: 84,673.50
Step by Step Solution
- Step 1: Write the proportion equation
99,040.08 : 136,701.36 = 61,345.92 : x - Step 2: Convert to fraction form
99,040.08/136,701.36 = 61,345.92/x - Step 3: Cross multiply
99,040.08x = 136,701.36 × 61,345.92 - Step 4: Simplify right side
99,040.08x = 8,386,070,694.45 - Step 5: Solve for x
x = 8,386,070,694.45/99,040.08 - Step 6: Final answer
x = 84,673.50
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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.