Finding the Fourth Proportional to 89,148.18, 133,728.87 and 29,983.62
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Solution
The fourth proportional to 89,148.18, 133,728.87 and 29,983.62 is: 44,977.65
Step by Step Solution
- Step 1: Write the proportion equation
89,148.18 : 133,728.87 = 29,983.62 : x - Step 2: Convert to fraction form
89,148.18/133,728.87 = 29,983.62/x - Step 3: Cross multiply
89,148.18x = 133,728.87 × 29,983.62 - Step 4: Simplify right side
89,148.18x = 4,009,675,621.11 - Step 5: Solve for x
x = 4,009,675,621.11/89,148.18 - Step 6: Final answer
x = 44,977.65
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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.