Finding the Fourth Proportional to 70,785.36, 106,207.20 and 63,699.48
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Solution
The fourth proportional to 70,785.36, 106,207.20 and 63,699.48 is: 95,575.46
Step by Step Solution
- Step 1: Write the proportion equation
70,785.36 : 106,207.20 = 63,699.48 : x - Step 2: Convert to fraction form
70,785.36/106,207.20 = 63,699.48/x - Step 3: Cross multiply
70,785.36x = 106,207.20 × 63,699.48 - Step 4: Simplify right side
70,785.36x = 6,765,343,412.26 - Step 5: Solve for x
x = 6,765,343,412.26/70,785.36 - Step 6: Final answer
x = 95,575.46
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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.