Finding the Fourth Proportional to 87,023.04, 130,518.84 and 39,627.12
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Solution
The fourth proportional to 87,023.04, 130,518.84 and 39,627.12 is: 59,433.52
Step by Step Solution
- Step 1: Write the proportion equation
87,023.04 : 130,518.84 = 39,627.12 : x - Step 2: Convert to fraction form
87,023.04/130,518.84 = 39,627.12/x - Step 3: Cross multiply
87,023.04x = 130,518.84 × 39,627.12 - Step 4: Simplify right side
87,023.04x = 5,172,085,734.94 - Step 5: Solve for x
x = 5,172,085,734.94/87,023.04 - Step 6: Final answer
x = 59,433.52
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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.