Finding the Fourth Proportional to 83,874.21, 125,811.31 and 57,498.99
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Solution
The fourth proportional to 83,874.21, 125,811.31 and 57,498.99 is: 86,248.48
Step by Step Solution
- Step 1: Write the proportion equation
83,874.21 : 125,811.31 = 57,498.99 : x - Step 2: Convert to fraction form
83,874.21/125,811.31 = 57,498.99/x - Step 3: Cross multiply
83,874.21x = 125,811.31 × 57,498.99 - Step 4: Simplify right side
83,874.21x = 7,234,023,255.58 - Step 5: Solve for x
x = 7,234,023,255.58/83,874.21 - Step 6: Final answer
x = 86,248.48
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1.5x scale
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.