Finding the Fourth Proportional to 80,411.13, 110,964.74 and 48,574.49
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Solution
The fourth proportional to 80,411.13, 110,964.74 and 48,574.49 is: 67,031.20
Step by Step Solution
- Step 1: Write the proportion equation
80,411.13 : 110,964.74 = 48,574.49 : x - Step 2: Convert to fraction form
80,411.13/110,964.74 = 48,574.49/x - Step 3: Cross multiply
80,411.13x = 110,964.74 × 48,574.49 - Step 4: Simplify right side
80,411.13x = 5,390,054,855.79 - Step 5: Solve for x
x = 5,390,054,855.79/80,411.13 - Step 6: Final answer
x = 67,031.20
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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.