Finding the Fourth Proportional to 86,775.22, 130,014.24 and 47,359.99
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Solution
The fourth proportional to 86,775.22, 130,014.24 and 47,359.99 is: 70,958.89
Step by Step Solution
- Step 1: Write the proportion equation
86,775.22 : 130,014.24 = 47,359.99 : x - Step 2: Convert to fraction form
86,775.22/130,014.24 = 47,359.99/x - Step 3: Cross multiply
86,775.22x = 130,014.24 × 47,359.99 - Step 4: Simplify right side
86,775.22x = 6,157,473,106.26 - Step 5: Solve for x
x = 6,157,473,106.26/86,775.22 - Step 6: Final answer
x = 70,958.89
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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.