Finding the Fourth Proportional to 86,679.20, 130,018.80 and 24,349.70
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Solution
The fourth proportional to 86,679.20, 130,018.80 and 24,349.70 is: 36,524.55
Step by Step Solution
- Step 1: Write the proportion equation
86,679.20 : 130,018.80 = 24,349.70 : x - Step 2: Convert to fraction form
86,679.20/130,018.80 = 24,349.70/x - Step 3: Cross multiply
86,679.20x = 130,018.80 × 24,349.70 - Step 4: Simplify right side
86,679.20x = 3,165,918,774.36 - Step 5: Solve for x
x = 3,165,918,774.36/86,679.20 - Step 6: Final answer
x = 36,524.55
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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.