Finding the Fourth Proportional to 98,540.42, 135,985.94 and 56,098.96
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Solution
The fourth proportional to 98,540.42, 135,985.94 and 56,098.96 is: 77,416.66
Step by Step Solution
- Step 1: Write the proportion equation
98,540.42 : 135,985.94 = 56,098.96 : x - Step 2: Convert to fraction form
98,540.42/135,985.94 = 56,098.96/x - Step 3: Cross multiply
98,540.42x = 135,985.94 × 56,098.96 - Step 4: Simplify right side
98,540.42x = 7,628,669,808.62 - Step 5: Solve for x
x = 7,628,669,808.62/98,540.42 - Step 6: Final answer
x = 77,416.66
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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.