Finding the Fourth Proportional to 97,887.75, 135,068.20 and 57,609.96
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Solution
The fourth proportional to 97,887.75, 135,068.20 and 57,609.96 is: 79,491.80
Step by Step Solution
- Step 1: Write the proportion equation
97,887.75 : 135,068.20 = 57,609.96 : x - Step 2: Convert to fraction form
97,887.75/135,068.20 = 57,609.96/x - Step 3: Cross multiply
97,887.75x = 135,068.20 × 57,609.96 - Step 4: Simplify right side
97,887.75x = 7,781,273,599.27 - Step 5: Solve for x
x = 7,781,273,599.27/97,887.75 - Step 6: Final answer
x = 79,491.80
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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.