Finding the Fourth Proportional to 87,201.70, 130,543.35 and 57,652.90
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Solution
The fourth proportional to 87,201.70, 130,543.35 and 57,652.90 is: 86,307.98
Step by Step Solution
- Step 1: Write the proportion equation
87,201.70 : 130,543.35 = 57,652.90 : x - Step 2: Convert to fraction form
87,201.70/130,543.35 = 57,652.90/x - Step 3: Cross multiply
87,201.70x = 130,543.35 × 57,652.90 - Step 4: Simplify right side
87,201.70x = 7,526,202,703.22 - Step 5: Solve for x
x = 7,526,202,703.22/87,201.70 - Step 6: Final answer
x = 86,307.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.