Finding the Fourth Proportional to 97,911.42, 135,116.61 and 54,890.70
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Solution
The fourth proportional to 97,911.42, 135,116.61 and 54,890.70 is: 75,748.52
Step by Step Solution
- Step 1: Write the proportion equation
97,911.42 : 135,116.61 = 54,890.70 : x - Step 2: Convert to fraction form
97,911.42/135,116.61 = 54,890.70/x - Step 3: Cross multiply
97,911.42x = 135,116.61 × 54,890.70 - Step 4: Simplify right side
97,911.42x = 7,416,644,592.00 - Step 5: Solve for x
x = 7,416,644,592.00/97,911.42 - Step 6: Final answer
x = 75,748.52
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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.