Finding the Fourth Proportional to 77,768.64, 116,635.68 and 22,351.68
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Solution
The fourth proportional to 77,768.64, 116,635.68 and 22,351.68 is: 33,522.55
Step by Step Solution
- Step 1: Write the proportion equation
77,768.64 : 116,635.68 = 22,351.68 : x - Step 2: Convert to fraction form
77,768.64/116,635.68 = 22,351.68/x - Step 3: Cross multiply
77,768.64x = 116,635.68 × 22,351.68 - Step 4: Simplify right side
77,768.64x = 2,607,003,395.94 - Step 5: Solve for x
x = 2,607,003,395.94/77,768.64 - Step 6: Final answer
x = 33,522.55
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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.