Finding the Fourth Proportional to 86,729.76, 130,083.84 and 27,565.92
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Solution
The fourth proportional to 86,729.76, 130,083.84 and 27,565.92 is: 41,345.45
Step by Step Solution
- Step 1: Write the proportion equation
86,729.76 : 130,083.84 = 27,565.92 : x - Step 2: Convert to fraction form
86,729.76/130,083.84 = 27,565.92/x - Step 3: Cross multiply
86,729.76x = 130,083.84 × 27,565.92 - Step 4: Simplify right side
86,729.76x = 3,585,880,726.73 - Step 5: Solve for x
x = 3,585,880,726.73/86,729.76 - Step 6: Final answer
x = 41,345.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.