Finding the Fourth Proportional to 98,434.98, 135,840.26 and 53,722.98
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Solution
The fourth proportional to 98,434.98, 135,840.26 and 53,722.98 is: 74,137.71
Step by Step Solution
- Step 1: Write the proportion equation
98,434.98 : 135,840.26 = 53,722.98 : x - Step 2: Convert to fraction form
98,434.98/135,840.26 = 53,722.98/x - Step 3: Cross multiply
98,434.98x = 135,840.26 × 53,722.98 - Step 4: Simplify right side
98,434.98x = 7,297,743,705.48 - Step 5: Solve for x
x = 7,297,743,705.48/98,434.98 - Step 6: Final answer
x = 74,137.71
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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.