Finding the Fourth Proportional to 98,796.16, 136,351.68 and 56,344.96
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Solution
The fourth proportional to 98,796.16, 136,351.68 and 56,344.96 is: 77,763.45
Step by Step Solution
- Step 1: Write the proportion equation
98,796.16 : 136,351.68 = 56,344.96 : x - Step 2: Convert to fraction form
98,796.16/136,351.68 = 56,344.96/x - Step 3: Cross multiply
98,796.16x = 136,351.68 × 56,344.96 - Step 4: Simplify right side
98,796.16x = 7,682,729,955.53 - Step 5: Solve for x
x = 7,682,729,955.53/98,796.16 - Step 6: Final answer
x = 77,763.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.