Finding the Fourth Proportional to 86,739.20, 130,108.80 and 24,409.70
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Solution
The fourth proportional to 86,739.20, 130,108.80 and 24,409.70 is: 36,614.55
Step by Step Solution
- Step 1: Write the proportion equation
86,739.20 : 130,108.80 = 24,409.70 : x - Step 2: Convert to fraction form
86,739.20/130,108.80 = 24,409.70/x - Step 3: Cross multiply
86,739.20x = 130,108.80 × 24,409.70 - Step 4: Simplify right side
86,739.20x = 3,175,916,775.36 - Step 5: Solve for x
x = 3,175,916,775.36/86,739.20 - Step 6: Final answer
x = 36,614.55
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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.