Finding the Fourth Proportional to 87,000.63, 120,058.81 and 51,192.96
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Solution
The fourth proportional to 87,000.63, 120,058.81 and 51,192.96 is: 70,645.07
Step by Step Solution
- Step 1: Write the proportion equation
87,000.63 : 120,058.81 = 51,192.96 : x - Step 2: Convert to fraction form
87,000.63/120,058.81 = 51,192.96/x - Step 3: Cross multiply
87,000.63x = 120,058.81 × 51,192.96 - Step 4: Simplify right side
87,000.63x = 6,146,165,857.98 - Step 5: Solve for x
x = 6,146,165,857.98/87,000.63 - Step 6: Final answer
x = 70,645.07
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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.