Finding the Fourth Proportional to 97,919.50, 135,129.27 and 53,207.50
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Solution
The fourth proportional to 97,919.50, 135,129.27 and 53,207.50 is: 73,426.55
Step by Step Solution
- Step 1: Write the proportion equation
97,919.50 : 135,129.27 = 53,207.50 : x - Step 2: Convert to fraction form
97,919.50/135,129.27 = 53,207.50/x - Step 3: Cross multiply
97,919.50x = 135,129.27 × 53,207.50 - Step 4: Simplify right side
97,919.50x = 7,189,890,633.53 - Step 5: Solve for x
x = 7,189,890,633.53/97,919.50 - Step 6: Final answer
x = 73,426.55
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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.