Finding the Fourth Proportional to 87,588.47, 120,872.08 and 47,302.23
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Solution
The fourth proportional to 87,588.47, 120,872.08 and 47,302.23 is: 65,277.07
Step by Step Solution
- Step 1: Write the proportion equation
87,588.47 : 120,872.08 = 47,302.23 : x - Step 2: Convert to fraction form
87,588.47/120,872.08 = 47,302.23/x - Step 3: Cross multiply
87,588.47x = 120,872.08 × 47,302.23 - Step 4: Simplify right side
87,588.47x = 5,717,518,692.23 - Step 5: Solve for x
x = 5,717,518,692.23/87,588.47 - Step 6: Final answer
x = 65,277.07
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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.