Finding the Fourth Proportional to 87,907.04, 121,312.08 and 47,620.88
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Solution
The fourth proportional to 87,907.04, 121,312.08 and 47,620.88 is: 65,717.01
Step by Step Solution
- Step 1: Write the proportion equation
87,907.04 : 121,312.08 = 47,620.88 : x - Step 2: Convert to fraction form
87,907.04/121,312.08 = 47,620.88/x - Step 3: Cross multiply
87,907.04x = 121,312.08 × 47,620.88 - Step 4: Simplify right side
87,907.04x = 5,776,988,004.23 - Step 5: Solve for x
x = 5,776,988,004.23/87,907.04 - Step 6: Final answer
x = 65,717.01
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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.