Finding the Fourth Proportional to 87,268.19, 130,900.86 and 49,748.18
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Solution
The fourth proportional to 87,268.19, 130,900.86 and 49,748.18 is: 74,621.45
Step by Step Solution
- Step 1: Write the proportion equation
87,268.19 : 130,900.86 = 49,748.18 : x - Step 2: Convert to fraction form
87,268.19/130,900.86 = 49,748.18/x - Step 3: Cross multiply
87,268.19x = 130,900.86 × 49,748.18 - Step 4: Simplify right side
87,268.19x = 6,512,078,890.93 - Step 5: Solve for x
x = 6,512,078,890.93/87,268.19 - Step 6: Final answer
x = 74,621.45
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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.