Finding the Fourth Proportional to 87,017.21, 130,461.98 and 27,818.81
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Solution
The fourth proportional to 87,017.21, 130,461.98 and 27,818.81 is: 41,707.81
Step by Step Solution
- Step 1: Write the proportion equation
87,017.21 : 130,461.98 = 27,818.81 : x - Step 2: Convert to fraction form
87,017.21/130,461.98 = 27,818.81/x - Step 3: Cross multiply
87,017.21x = 130,461.98 × 27,818.81 - Step 4: Simplify right side
87,017.21x = 3,629,296,894.75 - Step 5: Solve for x
x = 3,629,296,894.75/87,017.21 - Step 6: Final answer
x = 41,707.81
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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.