Finding the Fourth Proportional to 83,765.54, 115,603.05 and 47,966.82
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Solution
The fourth proportional to 83,765.54, 115,603.05 and 47,966.82 is: 66,197.99
Step by Step Solution
- Step 1: Write the proportion equation
83,765.54 : 115,603.05 = 47,966.82 : x - Step 2: Convert to fraction form
83,765.54/115,603.05 = 47,966.82/x - Step 3: Cross multiply
83,765.54x = 115,603.05 × 47,966.82 - Step 4: Simplify right side
83,765.54x = 5,545,110,690.80 - Step 5: Solve for x
x = 5,545,110,690.80/83,765.54 - Step 6: Final answer
x = 66,197.99
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1.5x scale
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.