Finding the Fourth Proportional to 87,088.58, 120,186.99 and 48,860.23
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Solution
The fourth proportional to 87,088.58, 120,186.99 and 48,860.23 is: 67,429.78
Step by Step Solution
- Step 1: Write the proportion equation
87,088.58 : 120,186.99 = 48,860.23 : x - Step 2: Convert to fraction form
87,088.58/120,186.99 = 48,860.23/x - Step 3: Cross multiply
87,088.58x = 120,186.99 × 48,860.23 - Step 4: Simplify right side
87,088.58x = 5,872,363,974.41 - Step 5: Solve for x
x = 5,872,363,974.41/87,088.58 - Step 6: Final answer
x = 67,429.78
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1.5x scale
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.