Finding the Fourth Proportional to 87,862.80, 121,259.61 and 63,353.77
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Solution
The fourth proportional to 87,862.80, 121,259.61 and 63,353.77 is: 87,434.65
Step by Step Solution
- Step 1: Write the proportion equation
87,862.80 : 121,259.61 = 63,353.77 : x - Step 2: Convert to fraction form
87,862.80/121,259.61 = 63,353.77/x - Step 3: Cross multiply
87,862.80x = 121,259.61 × 63,353.77 - Step 4: Simplify right side
87,862.80x = 7,682,253,139.08 - Step 5: Solve for x
x = 7,682,253,139.08/87,862.80 - Step 6: Final answer
x = 87,434.65
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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.