Finding the Fourth Proportional to 89,479.13, 134,219.50 and 27,149.63
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Solution
The fourth proportional to 89,479.13, 134,219.50 and 27,149.63 is: 40,724.68
Step by Step Solution
- Step 1: Write the proportion equation
89,479.13 : 134,219.50 = 27,149.63 : x - Step 2: Convert to fraction form
89,479.13/134,219.50 = 27,149.63/x - Step 3: Cross multiply
89,479.13x = 134,219.50 × 27,149.63 - Step 4: Simplify right side
89,479.13x = 3,644,009,024.81 - Step 5: Solve for x
x = 3,644,009,024.81/89,479.13 - Step 6: Final answer
x = 40,724.68
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1.5x scale
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.