Finding the Fourth Proportional to 83,281.84, 114,931.65 and 45,556.09
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Solution
The fourth proportional to 83,281.84, 114,931.65 and 45,556.09 is: 62,868.89
Step by Step Solution
- Step 1: Write the proportion equation
83,281.84 : 114,931.65 = 45,556.09 : x - Step 2: Convert to fraction form
83,281.84/114,931.65 = 45,556.09/x - Step 3: Cross multiply
83,281.84x = 114,931.65 × 45,556.09 - Step 4: Simplify right side
83,281.84x = 5,235,836,591.25 - Step 5: Solve for x
x = 5,235,836,591.25/83,281.84 - Step 6: Final answer
x = 62,868.89
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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.