Finding the Fourth Proportional to 83,742.24, 115,444.80 and 59,860.20
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Solution
The fourth proportional to 83,742.24, 115,444.80 and 59,860.20 is: 82,521.66
Step by Step Solution
- Step 1: Write the proportion equation
83,742.24 : 115,444.80 = 59,860.20 : x - Step 2: Convert to fraction form
83,742.24/115,444.80 = 59,860.20/x - Step 3: Cross multiply
83,742.24x = 115,444.80 × 59,860.20 - Step 4: Simplify right side
83,742.24x = 6,910,548,816.96 - Step 5: Solve for x
x = 6,910,548,816.96/83,742.24 - Step 6: Final answer
x = 82,521.66
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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.