Finding the Fourth Proportional to 83,847.40, 125,798.94 and 71,461.48
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Solution
The fourth proportional to 83,847.40, 125,798.94 and 71,461.48 is: 107,215.95
Step by Step Solution
- Step 1: Write the proportion equation
83,847.40 : 125,798.94 = 71,461.48 : x - Step 2: Convert to fraction form
83,847.40/125,798.94 = 71,461.48/x - Step 3: Cross multiply
83,847.40x = 125,798.94 × 71,461.48 - Step 4: Simplify right side
83,847.40x = 8,989,778,434.83 - Step 5: Solve for x
x = 8,989,778,434.83/83,847.40 - Step 6: Final answer
x = 107,215.95
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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.