Finding the Fourth Proportional to 83,808.59, 125,629.84 and 39,355.76
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Solution
The fourth proportional to 83,808.59, 125,629.84 and 39,355.76 is: 58,994.65
Step by Step Solution
- Step 1: Write the proportion equation
83,808.59 : 125,629.84 = 39,355.76 : x - Step 2: Convert to fraction form
83,808.59/125,629.84 = 39,355.76/x - Step 3: Cross multiply
83,808.59x = 125,629.84 × 39,355.76 - Step 4: Simplify right side
83,808.59x = 4,944,258,195.15 - Step 5: Solve for x
x = 4,944,258,195.15/83,808.59 - Step 6: Final answer
x = 58,994.65
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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.